diff --git a/src/arglist.c b/src/arglist.c
index d159f3f..104c67a 100644
--- a/src/arglist.c
+++ b/src/arglist.c
@@ -850,7 +850,7 @@
 	n = eap->line2 - eap->line1 + 1;
 	if (*eap->arg != NUL)
 	    // Can't have both a range and an argument.
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else if (n <= 0)
 	{
 	    // Don't give an error for ":%argdel" if the list is empty.
diff --git a/src/autocmd.c b/src/autocmd.c
index 94bd49a..4831ea8 100644
--- a/src/autocmd.c
+++ b/src/autocmd.c
@@ -580,7 +580,7 @@
     if (del_group)
     {
 	if (*arg == NUL)
-	    emsg(_(e_argreq));
+	    emsg(_(e_argument_required));
 	else
 	    au_del_group(arg);
     }
diff --git a/src/blob.c b/src/blob.c
index 9d41bdc..37d2be6 100644
--- a/src/blob.c
+++ b/src/blob.c
@@ -614,7 +614,7 @@
 	    return;		// type error; errmsg already given
 	if (before < 0 || before > len)
 	{
-	    semsg(_(e_invarg2), tv_get_string(&argvars[2]));
+	    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[2]));
 	    return;
 	}
     }
@@ -623,7 +623,7 @@
 	return;
     if (val < 0 || val > 255)
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	return;
     }
 
diff --git a/src/bufwrite.c b/src/bufwrite.c
index 45e9628..c0d5de3 100644
--- a/src/bufwrite.c
+++ b/src/bufwrite.c
@@ -1482,7 +1482,7 @@
 			    ui_breakcheck();
 			    if (got_int)
 			    {
-				errmsg = (char_u *)_(e_interr);
+				errmsg = (char_u *)_(e_interrupted);
 				break;
 			    }
 			}
@@ -1649,7 +1649,7 @@
 	ml_preserve(buf, FALSE);
 	if (got_int)
 	{
-	    errmsg = (char_u *)_(e_interr);
+	    errmsg = (char_u *)_(e_interrupted);
 	    goto restore_backup;
 	}
     }
@@ -2295,7 +2295,7 @@
 		}
 	    }
 	    else if (got_int)
-		errmsg = (char_u *)_(e_interr);
+		errmsg = (char_u *)_(e_interrupted);
 	    else
 		errmsg = (char_u *)_(e_write_error_file_system_full);
 	}
@@ -2315,7 +2315,7 @@
 		// know we got the message.
 		if (got_int)
 		{
-		    msg(_(e_interr));
+		    msg(_(e_interrupted));
 		    out_flush();
 		}
 		if ((fd = mch_open((char *)backup, O_RDONLY | O_EXTRA, 0)) >= 0)
diff --git a/src/channel.c b/src/channel.c
index 05e2489..5133440 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -1318,7 +1318,7 @@
     if (argvars[1].v_type != VAR_UNKNOWN
 	 && (argvars[1].v_type != VAR_DICT || argvars[1].vval.v_dict == NULL))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return NULL;
     }
 
@@ -1330,7 +1330,7 @@
 	p = vim_strchr(address + 1, ']');
 	if (p == NULL || *++p != ':')
 	{
-	    semsg(_(e_invarg2), address);
+	    semsg(_(e_invalid_argument_str), address);
 	    return NULL;
 	}
     }
@@ -1339,14 +1339,14 @@
 	p = vim_strchr(address, ':');
 	if (p == NULL)
 	{
-	    semsg(_(e_invarg2), address);
+	    semsg(_(e_invalid_argument_str), address);
 	    return NULL;
 	}
     }
     port = strtol((char *)(p + 1), &rest, 10);
     if (*address == NUL || port <= 0 || port >= 65536 || *rest != NUL)
     {
-	semsg(_(e_invarg2), address);
+	semsg(_(e_invalid_argument_str), address);
 	return NULL;
     }
     if (is_ipv6)
@@ -1367,7 +1367,7 @@
 	goto theend;
     if (opt.jo_timeout < 0)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	goto theend;
     }
 
@@ -3833,7 +3833,7 @@
     }
     else
     {
-	semsg(_(e_invarg2), tv_get_string(tv));
+	semsg(_(e_invalid_argument_str), tv_get_string(tv));
 	return NULL;
     }
     if (channel != NULL && reading)
diff --git a/src/clipboard.c b/src/clipboard.c
index 38596f5..09d05c9 100644
--- a/src/clipboard.c
+++ b/src/clipboard.c
@@ -1305,12 +1305,12 @@
 	    p += 8;
 	    new_exclude_prog = vim_regcomp(p, RE_MAGIC);
 	    if (new_exclude_prog == NULL)
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	    break;
 	}
 	else
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    break;
 	}
 	if (*p == ',')
diff --git a/src/cmdexpand.c b/src/cmdexpand.c
index 73c5a91..9468beb 100644
--- a/src/cmdexpand.c
+++ b/src/cmdexpand.c
@@ -2903,7 +2903,7 @@
     pat = tv_get_string(&argvars[0]);
     if (argvars[1].v_type != VAR_STRING)
     {
-	semsg(_(e_invarg2), "type must be a string");
+	semsg(_(e_invalid_argument_str), "type must be a string");
 	return;
     }
     type = tv_get_string(&argvars[1]);
@@ -2933,7 +2933,7 @@
 	xpc.xp_context = cmdcomplete_str_to_type(type);
 	if (xpc.xp_context == EXPAND_NOTHING)
 	{
-	    semsg(_(e_invarg2), type);
+	    semsg(_(e_invalid_argument_str), type);
 	    return;
 	}
 
diff --git a/src/debugger.c b/src/debugger.c
index 57a94a1..54bf6ba 100644
--- a/src/debugger.c
+++ b/src/debugger.c
@@ -594,7 +594,7 @@
 	bp->dbg_type = DBG_EXPR;
     else
     {
-	semsg(_(e_invarg2), p);
+	semsg(_(e_invalid_argument_str), p);
 	return FAIL;
     }
     p = skipwhite(p + 4);
@@ -619,7 +619,7 @@
 	    || (here && *p != NUL)
 	    || (bp->dbg_type == DBG_FUNC && strstr((char *)p, "()") != NULL))
     {
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 	return FAIL;
     }
 
diff --git a/src/dict.c b/src/dict.c
index b49005a..6773c75 100644
--- a/src/dict.c
+++ b/src/dict.c
@@ -720,7 +720,7 @@
 	return 0;
     if (di->di_tv.v_type != VAR_NUMBER)
     {
-	semsg(_(e_invarg2), tv_get_string(&di->di_tv));
+	semsg(_(e_invalid_argument_str), tv_get_string(&di->di_tv));
 	return 0;
     }
     return tv_get_number(&di->di_tv);
@@ -1257,7 +1257,7 @@
 		    break;
 	    if (i == 3)
 	    {
-		semsg(_(e_invarg2), action);
+		semsg(_(e_invalid_argument_str), action);
 		return;
 	    }
 	}
diff --git a/src/errors.h b/src/errors.h
index ccd8dbd..e5f004e 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -10,6 +10,9 @@
  * Definition of error messages, sorted on error number.
  */
 
+EXTERN char e_interrupted[]
+	INIT(= N_("Interrupted"));
+
 EXTERN char e_backslash_should_be_followed_by[]
 	INIT(= N_("E10: \\ should be followed by /, ? or &"));
 #ifdef FEAT_CMDWIN
@@ -494,7 +497,19 @@
 EXTERN char e_cannot_start_the_GUI[]
 	INIT(= N_("E229: Cannot start the GUI"));
 
-
+#if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
+EXTERN char e_unknown_fontset_str[]
+	INIT(= N_("E234: Unknown fontset: %s"));
+#endif
+#if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) \
+	|| defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_HAIKU)
+EXTERN char e_unknown_font_str[]
+	INIT(= N_("E235: Unknown font: %s"));
+#endif
+#if defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)
+EXTERN char e_font_str_is_not_fixed_width[]
+	INIT(= N_("E236: Font \"%s\" is not fixed-width"));
+#endif
 EXTERN char e_window_layout_changed_unexpectedly[]
 	INIT(= N_("E249: window layout changed unexpectedly"));
 #if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
@@ -513,6 +528,22 @@
 
 EXTERN char e_ambiguous_use_of_user_defined_command[]
 	INIT(= N_("E464: Ambiguous use of user-defined command"));
+EXTERN char e_command_aborted[]
+	INIT(= N_("E470: Command aborted"));
+EXTERN char e_argument_required[]
+	INIT(= N_("E471: Argument required"));
+EXTERN char e_command_failed[]
+	INIT(= N_("E472: Command failed"));
+EXTERN char e_internal_error_in_regexp[]
+	INIT(= N_("E473: Internal error in regexp"));
+EXTERN char e_invalid_argument[]
+	INIT(= N_("E474: Invalid argument"));
+EXTERN char e_invalid_argument_str[]
+	INIT(= N_("E475: Invalid argument: %s"));
+EXTERN char e_invalid_value_for_argument_str[]
+	INIT(= N_("E475: Invalid value for argument %s"));
+EXTERN char e_invalid_value_for_argument_str_str[]
+	INIT(= N_("E475: Invalid value for argument %s: %s"));
 EXTERN char e_invalid_command[]
 	INIT(= N_("E476: Invalid command"));
 #ifdef FEAT_EVAL
@@ -556,6 +587,22 @@
 	INIT(= N_("E516: No buffers were deleted"));
 EXTERN char e_no_buffers_were_wiped_out[]
 	INIT(= N_("E517: No buffers were wiped out"));
+#ifdef FEAT_EVAL
+EXTERN char e_endwhile_without_while[]
+	INIT(= N_("E588: :endwhile without :while"));
+EXTERN char e_endfor_without_for[]
+	INIT(= N_("E588: :endfor without :for"));
+EXTERN char e_missing_endtry[]
+	INIT(= N_("E600: Missing :endtry"));
+EXTERN char e_endtry_without_try[]
+	INIT(= N_("E602: :endtry without :try"));
+EXTERN char e_catch_without_try[]
+	INIT(= N_("E603: :catch without :try"));
+EXTERN char e_finally_without_try[]
+	INIT(= N_("E606: :finally without :try"));
+EXTERN char e_multiple_finally[]
+	INIT(= N_("E607: multiple :finally"));
+#endif
 
 EXTERN char e_no_argument_to_delete[]
 	INIT(= N_("E610: No argument to delete"));
diff --git a/src/eval.c b/src/eval.c
index 40a5910..0c5967b 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -869,7 +869,7 @@
 	    if (!aborting() && !quiet)
 	    {
 		emsg_severe = TRUE;
-		semsg(_(e_invarg2), name);
+		semsg(_(e_invalid_argument_str), name);
 		return NULL;
 	    }
 	}
diff --git a/src/evalfunc.c b/src/evalfunc.c
index b9310c1..9b49d81 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -3188,7 +3188,7 @@
 
 	if (list2fpos(argvars, &pos, NULL, &curswant, charcol) == FAIL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
 	line = pos.lnum;
@@ -3207,7 +3207,7 @@
     {
 	line = tv_get_lnum(argvars);
 	if (line < 0)
-	    semsg(_(e_invarg2), tv_get_string(&argvars[0]));
+	    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[0]));
 	col = (long)tv_get_number_chk(&argvars[1], NULL);
 	if (charcol)
 	    col = buf_charidx_to_byteidx(curbuf, line, col) + 1;
@@ -3216,7 +3216,7 @@
     }
     else
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
     if (line < 0 || col < 0 || coladd < 0)
@@ -3265,7 +3265,7 @@
 
     pid = (int)tv_get_number(&argvars[0]);
     if (pid == 0)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, 0, pid);
@@ -4094,7 +4094,7 @@
     }
     if (s == NULL)
     {
-	semsg(_(e_invarg2), "NULL");
+	semsg(_(e_invalid_argument_str), "NULL");
 	return;
     }
 
@@ -4109,7 +4109,7 @@
 
     if (s == NULL || *s == NUL || (use_string && VIM_ISDIGIT(*s))
 					 || (is_funcref && trans_name == NULL))
-	semsg(_(e_invarg2), use_string ? tv_get_string(&argvars[0]) : s);
+	semsg(_(e_invalid_argument_str), use_string ? tv_get_string(&argvars[0]) : s);
     // Don't check an autoload name for existence here.
     else if (trans_name != NULL && (is_funcref
 			 ? find_func(trans_name, is_global, NULL) == NULL
@@ -4402,7 +4402,7 @@
 		}
 	    }
 	    else
-		semsg(_(e_invarg2), what);
+		semsg(_(e_invalid_argument_str), what);
 
 	    // When {what} == "dict" and pt->pt_dict == NULL, evaluate the
 	    // third argument
@@ -4887,7 +4887,7 @@
 	    || argvars[0].vval.v_string == NULL
 	    || *argvars[0].vval.v_string == NUL)
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[0]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[0]));
     }
     else
     {
@@ -6697,7 +6697,7 @@
 	if (*end != NUL)
 	{
 	    semsg(_(lv.ll_name == lv.ll_name_end
-					   ? e_invarg2 : e_trailing_arg), end);
+					   ? e_invalid_argument_str : e_trailing_arg), end);
 	}
 	else
 	{
@@ -7760,7 +7760,7 @@
     return;
 
 theend:
-    semsg(_(e_invarg2), tv_get_string(&argvars[0]));
+    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[0]));
     rettv->v_type = VAR_NUMBER;
     rettv->vval.v_number = -1;
 }
@@ -8085,7 +8085,7 @@
 			     }
 			  if (mask == 0)
 			  {
-			      semsg(_(e_invarg2), flags);
+			      semsg(_(e_invalid_argument_str), flags);
 			      dir = 0;
 			  }
 			  else
@@ -8175,7 +8175,7 @@
     if (((flags & (SP_REPEAT | SP_RETCOUNT)) != 0)
 	    || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK)))
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	goto theend;
     }
 
@@ -8519,7 +8519,7 @@
     if ((flags & (SP_END | SP_SUBPAT)) != 0
 	    || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK)))
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[3]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[3]));
 	goto theend;
     }
 
@@ -8541,7 +8541,7 @@
 	    lnum_stop = (long)tv_get_number_chk(&argvars[5], NULL);
 	    if (lnum_stop < 0)
 	    {
-		semsg(_(e_invarg2), tv_get_string(&argvars[5]));
+		semsg(_(e_invalid_argument_str), tv_get_string(&argvars[5]));
 		goto theend;
 	    }
 #ifdef FEAT_RELTIME
@@ -8550,7 +8550,7 @@
 		time_limit = (long)tv_get_number_chk(&argvars[6], NULL);
 		if (time_limit < 0)
 		{
-		    semsg(_(e_invarg2), tv_get_string(&argvars[6]));
+		    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[6]));
 		    goto theend;
 		}
 	    }
@@ -8851,7 +8851,7 @@
 		    rettv->vval.v_number = 0;
 	    }
 	    else
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 	}
     }
 }
@@ -8966,7 +8966,7 @@
 	return;
     if (STRLEN(mode_str) != 9)
     {
-	semsg(_(e_invarg2), mode_str);
+	semsg(_(e_invalid_argument_str), mode_str);
 	return;
     }
 
@@ -9085,7 +9085,7 @@
 
 	    if (ret == FAIL || *++stropt != NUL)
 	    {
-		semsg(_(e_invargval), "value");
+		semsg(_(e_invalid_value_for_argument_str), "value");
 		return;
 	    }
 	}
diff --git a/src/evalvars.c b/src/evalvars.c
index 03ed5c1..381bda4 100644
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -792,7 +792,7 @@
     {
 	// ":let" without "=": list variables
 	if (*arg == '[')
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else if (expr[0] == '.' && expr[1] == '=')
 	    emsg(_("E985: .= is not supported with script version >= 2"));
 	else if (!ends_excmd2(eap->cmd, arg))
@@ -1049,7 +1049,7 @@
 	    if (s == p)
 	    {
 		if (!silent)
-		    semsg(_(e_invarg2), p);
+		    semsg(_(e_invalid_argument_str), p);
 		return NULL;
 	    }
 	    ++*var_count;
@@ -1069,7 +1069,7 @@
 	    else if (*p != ',')
 	    {
 		if (!silent)
-		    semsg(_(e_invarg2), p);
+		    semsg(_(e_invalid_argument_str), p);
 		return NULL;
 	    }
 	}
@@ -1220,7 +1220,7 @@
 		if (len < 0 && !aborting())
 		{
 		    emsg_severe = TRUE;
-		    semsg(_(e_invarg2), arg);
+		    semsg(_(e_invalid_argument_str), arg);
 		    break;
 		}
 		error = TRUE;
@@ -1316,7 +1316,7 @@
     name = arg;
     len = get_env_len(&arg);
     if (len == 0)
-	semsg(_(e_invarg2), name - 1);
+	semsg(_(e_invalid_argument_str), name - 1);
     else
     {
 	if (op != NULL && vim_strchr((char_u *)"+-*/%", *op) != NULL)
@@ -1606,7 +1606,7 @@
 	clear_lval(&lv);
     }
     else
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 
     return arg_end;
 }
@@ -1668,7 +1668,7 @@
 	    ++arg;
 	    if (get_env_len(&arg) == 0)
 	    {
-		semsg(_(e_invarg2), arg - 1);
+		semsg(_(e_invalid_argument_str), arg - 1);
 		return;
 	    }
 	    if (!error && !eap->skip
@@ -4016,7 +4016,7 @@
     // Catch a bad name early.
     if (!eval_isnamec1(*name))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return FAIL;
     }
 
@@ -4044,7 +4044,7 @@
 	    // Trailing characters are present after the variable name
 	    semsg(_(e_trailing_arg), redir_endp);
 	else
-	    semsg(_(e_invarg2), name);
+	    semsg(_(e_invalid_argument_str), name);
 	redir_endp = NULL;  // don't store a value, only cleanup
 	var_redir_stop();
 	return FAIL;
diff --git a/src/evalwindow.c b/src/evalwindow.c
index 4ac6026..f863026 100644
--- a/src/evalwindow.c
+++ b/src/evalwindow.c
@@ -928,7 +928,7 @@
 
         if (argvars[2].v_type != VAR_DICT || argvars[2].vval.v_dict == NULL)
         {
-            emsg(_(e_invarg));
+            emsg(_(e_invalid_argument));
             return;
         }
 
@@ -1149,7 +1149,7 @@
 
     if (argvars[0].v_type != VAR_DICT
 	    || (dict = argvars[0].vval.v_dict) == NULL)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	if (dict_find(dict, (char_u *)"lnum", -1) != NULL)
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index 8f7418b..25c1c8b 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -480,7 +480,7 @@
 	}
 	else
 	{
-	    semsg(_(e_invarg2), p);
+	    semsg(_(e_invalid_argument_str), p);
 	    goto sortend;
 	}
     }
@@ -488,7 +488,7 @@
     // Can only have one of 'n', 'b', 'o' and 'x'.
     if (format_found > 1)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	goto sortend;
     }
 
@@ -664,7 +664,7 @@
     vim_free(sortbuf2);
     vim_regfree(regmatch.regprog);
     if (got_int)
-	emsg(_(e_interr));
+	emsg(_(e_interrupted));
 }
 
 /*
@@ -1811,7 +1811,7 @@
 		|| eap->line2 > 0
 		|| eap->addr_count > 1))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1909,7 +1909,7 @@
     {
 	if (eap->cmdidx == CMD_saveas)
 	{
-	    emsg(_(e_argreq));
+	    emsg(_(e_argument_required));
 	    goto theend;
 	}
 	other = FALSE;
@@ -4776,7 +4776,7 @@
     else if (!global_busy)
     {
 	if (got_int)		// interrupted
-	    emsg(_(e_interr));
+	    emsg(_(e_interrupted));
 	else if (got_match)	// did find something but nothing substituted
 	    msg("");
 	else if (subflags.do_error)	// nothing found
@@ -4845,7 +4845,7 @@
     }
     if (got_int)
     {
-	emsg(_(e_interr));
+	emsg(_(e_interrupted));
 	return TRUE;
     }
     return FALSE;
@@ -4992,7 +4992,7 @@
 	 * pass 2: execute the command for each line that has been marked
 	 */
 	if (got_int)
-	    msg(_(e_interr));
+	    msg(_(e_interrupted));
 	else if (ndone == 0)
 	{
 	    if (type == 'v')
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 3b293e9..0403143 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -1212,7 +1212,7 @@
 					    && !func_has_ended(real_cookie))))
 	{
 	    if (cstack.cs_flags[cstack.cs_idx] & CSF_TRY)
-		emsg(_(e_endtry));
+		emsg(_(e_missing_endtry));
 	    else if (cstack.cs_flags[cstack.cs_idx] & CSF_WHILE)
 		emsg(_(e_missing_endwhile));
 	    else if (cstack.cs_flags[cstack.cs_idx] & CSF_FOR)
@@ -2216,7 +2216,7 @@
 	while (ea.arg[0] == '+' && ea.arg[1] == '+')
 	    if (getargopt(&ea) == FAIL && !ni)
 	    {
-		errormsg = _(e_invarg);
+		errormsg = _(e_invalid_argument);
 		goto doend;
 	    }
 
@@ -2400,7 +2400,7 @@
 
     if (!ni && (ea.argt & EX_NEEDARG) && *ea.arg == NUL)
     {
-	errormsg = _(e_argreq);
+	errormsg = _(e_argument_required);
 	goto doend;
     }
 
@@ -5939,7 +5939,7 @@
 		    tab_number = tabpage_index(lastused_tabpage);
 		else
 		{
-		    eap->errmsg = ex_errmsg(e_invargval, eap->arg);
+		    eap->errmsg = ex_errmsg(e_invalid_value_for_argument_str, eap->arg);
 		    tab_number = 0;
 		    goto theend;
 		}
@@ -5947,7 +5947,7 @@
 		    || tab_number > LAST_TAB_NR)
 	    {
 		// No numbers as argument.
-		eap->errmsg = ex_errmsg(e_invarg2, eap->arg);
+		eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
 		goto theend;
 	    }
 	}
@@ -5959,7 +5959,7 @@
 		    || tab_number == 0)
 	    {
 		// No numbers as argument.
-		eap->errmsg = ex_errmsg(e_invarg2, eap->arg);
+		eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
 		goto theend;
 	    }
 	    tab_number = tab_number * relative + tabpage_index(curtab);
@@ -5967,7 +5967,7 @@
 		--tab_number;
 	}
 	if (tab_number < unaccept_arg0 || tab_number > LAST_TAB_NR)
-	    eap->errmsg = ex_errmsg(e_invarg2, eap->arg);
+	    eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
     }
     else if (eap->addr_count > 0)
     {
@@ -6678,7 +6678,7 @@
 			    || tab_number == 0)
 		{
 		    // No numbers as argument.
-		    eap->errmsg = ex_errmsg(e_invarg2, eap->arg);
+		    eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
 		    return;
 		}
 	    }
@@ -7415,7 +7415,7 @@
 	|| pathcmp((char *)pdir, (char *)new_dir, -1) != 0;
     if (dir_differs && vim_chdir(new_dir))
     {
-	emsg(_(e_failed));
+	emsg(_(e_command_failed));
 	vim_free(pdir);
     }
     else
@@ -7541,7 +7541,7 @@
     {
 	case 'm': break;
 	case NUL: len *= 1000L; break;
-	default: semsg(_(e_invarg2), eap->arg); return;
+	default: semsg(_(e_invalid_argument_str), eap->arg); return;
     }
 
     // Hide the cursor if invoked with !
@@ -7635,7 +7635,7 @@
 
     if (!isdigit(*arg))
     {
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 	return;
     }
     w = getdigits(&arg);
@@ -7659,7 +7659,7 @@
 	// CTRL-W g and CTRL-W CTRL-G  have an extra command character
 	if (eap->arg[1] == NUL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
 	xchar = eap->arg[1];
@@ -7676,7 +7676,7 @@
 #endif
 		'"')
 	    && eap->nextcmd == NULL)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else if (!eap->skip)
     {
 	// Pass flags on for ":vertical wincmd ]".
@@ -8039,7 +8039,7 @@
     }
 
     if (*p != NUL)
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
     else
 	undo_time(eap->cmdidx == CMD_earlier ? -count : count,
 							    sec, file, FALSE);
@@ -8135,7 +8135,7 @@
 	    if (*arg != NUL)
 	    {
 		redir_reg = 0;
-		semsg(_(e_invarg2), eap->arg);
+		semsg(_(e_invalid_argument_str), eap->arg);
 	    }
 	}
 	else if (*arg == '=' && arg[1] == '>')
@@ -8162,7 +8162,7 @@
 	// TODO: redirect to a buffer
 
 	else
-	    semsg(_(e_invarg2), eap->arg);
+	    semsg(_(e_invalid_argument_str), eap->arg);
     }
 
     // Make sure redirection is not off.  Can happen for cmdline completion
@@ -8326,7 +8326,7 @@
 	return;
 #endif
     if (*eap->arg == NUL)		// No argument?
-	emsg(_(e_argreq));
+	emsg(_(e_argument_required));
     else if (eap->arg[1] != NUL)	// more than one character?
 	semsg(_(e_trailing_arg), eap->arg);
     else
@@ -9322,7 +9322,7 @@
 	set_option_value((char_u *)"keymodel", 0L, (char_u *)"", 0);
     }
     else
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
 }
 
 static int filetype_detect = FALSE;
@@ -9417,7 +9417,7 @@
 	}
     }
     else
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 }
 
 /*
diff --git a/src/ex_eval.c b/src/ex_eval.c
index cb3fbc6..f469042 100644
--- a/src/ex_eval.c
+++ b/src/ex_eval.c
@@ -191,7 +191,7 @@
      * interrupt exception is catchable by the innermost try conditional and
      * not replaced by an interrupt message error exception.
      */
-    if (mesg == (char_u *)_(e_interr))
+    if (mesg == (char_u *)_(e_interrupted))
     {
 	*ignore = TRUE;
 	return TRUE;
@@ -1387,12 +1387,12 @@
 
     if (eap->cmdidx == CMD_endwhile)
     {
-	err = e_while;
+	err = e_endwhile_without_while;
 	csf = CSF_WHILE;
     }
     else
     {
-	err = e_for;
+	err = e_endfor_without_for;
 	csf = CSF_FOR;
     }
 
@@ -1415,7 +1415,7 @@
 	    if (!(fl & CSF_TRY))
 		eap->errmsg = _(e_missing_endif);
 	    else if (fl & CSF_FINALLY)
-		eap->errmsg = _(e_endtry);
+		eap->errmsg = _(e_missing_endtry);
 	    // Try to find the matching ":while" and report what's missing.
 	    for (idx = cstack->cs_idx; idx > 0; --idx)
 	    {
@@ -1513,7 +1513,7 @@
 	value = eval_to_string_skip(arg, eap, eap->skip);
     else
     {
-	emsg(_(e_argreq));
+	emsg(_(e_argument_required));
 	value = NULL;
     }
 
@@ -1706,7 +1706,7 @@
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
     {
-	eap->errmsg = _(e_catch);
+	eap->errmsg = _(e_catch_without_try);
 	give_up = TRUE;
     }
     else
@@ -1802,7 +1802,7 @@
 		    *end = save_char;
 		p_cpo = save_cpo;
 		if (regmatch.regprog == NULL)
-		    semsg(_(e_invarg2), pat);
+		    semsg(_(e_invalid_argument_str), pat);
 		else
 		{
 		    /*
@@ -1870,7 +1870,7 @@
 	return;
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
-	eap->errmsg = _(e_finally);
+	eap->errmsg = _(e_finally_without_try);
     else
     {
 	if (!(cstack->cs_flags[cstack->cs_idx] & CSF_TRY))
@@ -1890,7 +1890,7 @@
 	if (cstack->cs_flags[idx] & CSF_FINALLY)
 	{
 	    // Give up for a multiple ":finally" and ignore it.
-	    eap->errmsg = _(e_finally_dup);
+	    eap->errmsg = _(e_multiple_finally);
 	    return;
 	}
 	rewind_conditionals(cstack, idx, CSF_WHILE | CSF_FOR,
@@ -2002,7 +2002,7 @@
 	return;
 
     if (cstack->cs_trylevel <= 0 || cstack->cs_idx < 0)
-	eap->errmsg = _(e_no_endtry);
+	eap->errmsg = _(e_endtry_without_try);
     else
     {
 	/*
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 814681b..0be4503 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4200,7 +4200,7 @@
     {
 	n = string_to_key(p_cedit, FALSE);
 	if (vim_isprintc(n))
-	    return e_invarg;
+	    return e_invalid_argument;
 	cedit_key = n;
     }
     return NULL;
diff --git a/src/fileio.c b/src/fileio.c
index 5a731a8..73c7243 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -2406,7 +2406,7 @@
 	{
 	    if (!(flags & READ_DUMMY))
 	    {
-		filemess(curbuf, sfname, (char_u *)_(e_interr), 0);
+		filemess(curbuf, sfname, (char_u *)_(e_interrupted), 0);
 		if (newfile)
 		    curbuf->b_p_ro = TRUE;	// must use "w!" now
 	    }
diff --git a/src/filepath.c b/src/filepath.c
index f4bddf8..a9edf7d 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -842,7 +842,7 @@
     name = tv_get_string(&argvars[0]);
     if (name == NULL || *name == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -2267,7 +2267,7 @@
     }
     else
     {
-	semsg(_(e_invarg2),
+	semsg(_(e_invalid_argument_str),
 		_("writefile() first argument must be a List or a Blob"));
 	return;
     }
diff --git a/src/globals.h b/src/globals.h
index 2341f2d..98ad710 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1600,39 +1600,11 @@
 #endif
 
 /*
- * The error messages that can be shared are included here.
- * Excluded are errors that are only used once and debugging messages.
+ * Some error messages that can be shared are included here.
+ * They should be moved to errors.h.
  */
-EXTERN char e_abort[]		INIT(= N_("E470: Command aborted"));
-EXTERN char e_argreq[]		INIT(= N_("E471: Argument required"));
-#ifdef FEAT_EVAL
-EXTERN char e_catch[]		INIT(= N_("E603: :catch without :try"));
-EXTERN char e_finally[]		INIT(= N_("E606: :finally without :try"));
-EXTERN char e_finally_dup[]	INIT(= N_("E607: multiple :finally"));
-EXTERN char e_endtry[]		INIT(= N_("E600: Missing :endtry"));
-EXTERN char e_no_endtry[]	INIT(= N_("E602: :endtry without :try"));
-EXTERN char e_while[]		INIT(= N_("E588: :endwhile without :while"));
-EXTERN char e_for[]		INIT(= N_("E588: :endfor without :for"));
-#endif
-EXTERN char e_failed[]	INIT(= N_("E472: Command failed"));
-#if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
-EXTERN char e_fontset[]	INIT(= N_("E234: Unknown fontset: %s"));
-#endif
-#if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) \
-	|| defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_HAIKU)
-EXTERN char e_font[]		INIT(= N_("E235: Unknown font: %s"));
-#endif
-#if defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)
-EXTERN char e_fontwidth[]	INIT(= N_("E236: Font \"%s\" is not fixed-width"));
-#endif
-EXTERN char e_internal[]	INIT(= N_("E473: Internal error"));
 EXTERN char e_intern2[]		INIT(= N_("E685: Internal error: %s"));
-EXTERN char e_interr[]		INIT(= N_("Interrupted"));
-EXTERN char e_invarg[]		INIT(= N_("E474: Invalid argument"));
-EXTERN char e_invarg2[]		INIT(= N_("E475: Invalid argument: %s"));
 EXTERN char e_duparg2[]		INIT(= N_("E983: Duplicate argument: %s"));
-EXTERN char e_invargval[]	INIT(= N_("E475: Invalid value for argument %s"));
-EXTERN char e_invargNval[]	INIT(= N_("E475: Invalid value for argument %s: %s"));
 #ifdef FEAT_SPELL
 EXTERN char e_no_spell[]	INIT(= N_("E756: Spell checking is not possible"));
 #endif
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 2d313f7..ba3993b 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -5071,7 +5071,7 @@
     if (font == NULL)
     {
 	if (report_error)
-	    semsg(_((char *)e_font), name);
+	    semsg(_((char *)e_unknown_font_str), name);
 	return NULL;
     }
 
diff --git a/src/gui_haiku.cc b/src/gui_haiku.cc
index 6d973c5..1dd29b7 100644
--- a/src/gui_haiku.cc
+++ b/src/gui_haiku.cc
@@ -3847,7 +3847,7 @@
 
     if (name == 0 && be_fixed_font == 0) {
 	if (giveErrorIfMissing)
-			semsg(_(e_font), name);
+	    semsg(_(e_unknown_font_str), name);
 	return NOFONT;
     }
 
@@ -3914,7 +3914,7 @@
 
     if (count_font_styles(family) <= 0) {
 	if (giveErrorIfMissing)
-			semsg(_(e_font), font->name);
+	    semsg(_(e_unknown_font_str), font->name);
 	delete font;
 	return NOFONT;
     }
diff --git a/src/gui_photon.c b/src/gui_photon.c
index ea8e5e4..d48a153 100644
--- a/src/gui_photon.c
+++ b/src/gui_photon.c
@@ -2955,7 +2955,7 @@
     }
 
     if (report_error)
-	semsg(e_font, vim_font_name);
+	semsg(e_unknown_font_str, vim_font_name);
 
     return FAIL;
 }
diff --git a/src/gui_w32.c b/src/gui_w32.c
index 4edce2e..d5ffd16 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -1547,7 +1547,7 @@
     if (get_logfont(&lf, name, NULL, giveErrorIfMissing) == OK)
 	font = get_font_handle(&lf);
     if (font == NOFONT && giveErrorIfMissing)
-	semsg(_(e_font), name);
+	semsg(_(e_unknown_font_str), name);
     return font;
 }
 
diff --git a/src/gui_x11.c b/src/gui_x11.c
index 92bbfc3..2e87177 100644
--- a/src/gui_x11.c
+++ b/src/gui_x11.c
@@ -1887,7 +1887,7 @@
     if (font == NULL)
     {
 	if (giveErrorIfMissing)
-	    semsg(_(e_font), name);
+	    semsg(_(e_unknown_font_str), name);
 	return NOFONT;
     }
 
@@ -1911,7 +1911,7 @@
 
     if (font->max_bounds.width != font->min_bounds.width)
     {
-	semsg(_(e_fontwidth), name);
+	semsg(_(e_font_str_is_not_fixed_width), name);
 	XFreeFont(gui.dpy, font);
 	return NOFONT;
     }
@@ -2072,7 +2072,7 @@
     if (fontset == NULL)
     {
 	if (giveErrorIfMissing)
-	    semsg(_(e_fontset), name);
+	    semsg(_(e_unknown_fontset_str), name);
 	return NOFONTSET;
     }
 
diff --git a/src/highlight.c b/src/highlight.c
index 9502428..c4f5c66 100644
--- a/src/highlight.c
+++ b/src/highlight.c
@@ -1579,7 +1579,7 @@
 		linep = vim_strchr(linep, '\'');
 		if (linep == NULL)
 		{
-		    semsg(_(e_invarg2), key_start);
+		    semsg(_(e_invalid_argument_str), key_start);
 		    error = TRUE;
 		    break;
 		}
diff --git a/src/indent.c b/src/indent.c
index ed1b799..12020f8 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -44,7 +44,7 @@
 		if (cp != end)
 		    emsg(_(e_positive));
 		else
-		    semsg(_(e_invarg2), cp);
+		    semsg(_(e_invalid_argument_str), cp);
 		return FAIL;
 	    }
 	}
@@ -56,7 +56,7 @@
 	    ++valcount;
 	    continue;
 	}
-	semsg(_(e_invarg2), var);
+	semsg(_(e_invalid_argument_str), var);
 	return FAIL;
     }
 
@@ -73,7 +73,7 @@
 	// Catch negative values, overflow and ridiculous big values.
 	if (n < 0 || n > 9999)
 	{
-	    semsg(_(e_invarg2), cp);
+	    semsg(_(e_invalid_argument_str), cp);
 	    vim_free(*array);
 	    *array = NULL;
 	    return FAIL;
@@ -1627,7 +1627,7 @@
     }
     if (new_ts < 0 || new_ts > 9999)
     {
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
 	return;
     }
     if (new_ts == 0)
@@ -1736,7 +1736,7 @@
 	line_breakcheck();
     }
     if (got_int)
-	emsg(_(e_interr));
+	emsg(_(e_interrupted));
 
 #ifdef FEAT_VARTABS
     // If a single value was given then it can be considered equal to
@@ -2095,6 +2095,9 @@
     }
 }
 
+/*
+ * Fix indent for 'lisp' and 'cindent'.
+ */
     void
 fix_indent(void)
 {
diff --git a/src/insexpand.c b/src/insexpand.c
index 3cefb39..d006135 100644
--- a/src/insexpand.c
+++ b/src/insexpand.c
@@ -2746,7 +2746,7 @@
 	return;
 
     if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	startcol = (int)tv_get_number_chk(&argvars[0], NULL);
diff --git a/src/job.c b/src/job.c
index 7329851..36ff524 100644
--- a/src/job.c
+++ b/src/job.c
@@ -33,7 +33,7 @@
 	*modep = MODE_JSON;
     else
     {
-	semsg(_(e_invarg2), val);
+	semsg(_(e_invalid_argument_str), val);
 	return FAIL;
     }
     return OK;
@@ -57,7 +57,7 @@
 	opt->jo_io[part] = JIO_OUT;
     else
     {
-	semsg(_(e_invarg2), val);
+	semsg(_(e_invalid_argument_str), val);
 	return FAIL;
     }
     return OK;
@@ -220,7 +220,7 @@
 		opt->jo_io_buf[part] = tv_get_number(item);
 		if (opt->jo_io_buf[part] <= 0)
 		{
-		    semsg(_(e_invargNval), hi->hi_key, tv_get_string(item));
+		    semsg(_(e_invalid_value_for_argument_str_str), hi->hi_key, tv_get_string(item));
 		    return FAIL;
 		}
 		if (buflist_findnr(opt->jo_io_buf[part]) == NULL)
@@ -270,7 +270,7 @@
 		*lp = tv_get_number(item);
 		if (*lp < 0)
 		{
-		    semsg(_(e_invargNval), hi->hi_key, tv_get_string(item));
+		    semsg(_(e_invalid_value_for_argument_str_str), hi->hi_key, tv_get_string(item));
 		    return FAIL;
 		}
 	    }
@@ -281,7 +281,7 @@
 		opt->jo_set |= JO_CHANNEL;
 		if (item->v_type != VAR_CHANNEL)
 		{
-		    semsg(_(e_invargval), "channel");
+		    semsg(_(e_invalid_value_for_argument_str), "channel");
 		    return FAIL;
 		}
 		opt->jo_channel = item->vval.v_channel;
@@ -294,7 +294,7 @@
 		opt->jo_callback = get_callback(item);
 		if (opt->jo_callback.cb_name == NULL)
 		{
-		    semsg(_(e_invargval), "callback");
+		    semsg(_(e_invalid_value_for_argument_str), "callback");
 		    return FAIL;
 		}
 	    }
@@ -306,7 +306,7 @@
 		opt->jo_out_cb = get_callback(item);
 		if (opt->jo_out_cb.cb_name == NULL)
 		{
-		    semsg(_(e_invargval), "out_cb");
+		    semsg(_(e_invalid_value_for_argument_str), "out_cb");
 		    return FAIL;
 		}
 	    }
@@ -318,7 +318,7 @@
 		opt->jo_err_cb = get_callback(item);
 		if (opt->jo_err_cb.cb_name == NULL)
 		{
-		    semsg(_(e_invargval), "err_cb");
+		    semsg(_(e_invalid_value_for_argument_str), "err_cb");
 		    return FAIL;
 		}
 	    }
@@ -330,7 +330,7 @@
 		opt->jo_close_cb = get_callback(item);
 		if (opt->jo_close_cb.cb_name == NULL)
 		{
-		    semsg(_(e_invargval), "close_cb");
+		    semsg(_(e_invalid_value_for_argument_str), "close_cb");
 		    return FAIL;
 		}
 	    }
@@ -343,7 +343,7 @@
 		    never = TRUE;
 		else if (STRCMP(val, "auto") != 0)
 		{
-		    semsg(_(e_invargNval), "drop", val);
+		    semsg(_(e_invalid_value_for_argument_str_str), "drop", val);
 		    return FAIL;
 		}
 		opt->jo_drop_never = never;
@@ -356,7 +356,7 @@
 		opt->jo_exit_cb = get_callback(item);
 		if (opt->jo_exit_cb.cb_name == NULL)
 		{
-		    semsg(_(e_invargval), "exit_cb");
+		    semsg(_(e_invalid_value_for_argument_str), "exit_cb");
 		    return FAIL;
 		}
 	    }
@@ -370,7 +370,7 @@
 						       opt->jo_term_name_buf);
 		if (opt->jo_term_name == NULL)
 		{
-		    semsg(_(e_invargval), "term_name");
+		    semsg(_(e_invalid_value_for_argument_str), "term_name");
 		    return FAIL;
 		}
 	    }
@@ -381,7 +381,7 @@
 		val = tv_get_string(item);
 		if (STRCMP(val, "open") != 0 && STRCMP(val, "close") != 0)
 		{
-		    semsg(_(e_invargNval), "term_finish", val);
+		    semsg(_(e_invalid_value_for_argument_str_str), "term_finish", val);
 		    return FAIL;
 		}
 		opt->jo_set2 |= JO2_TERM_FINISH;
@@ -406,7 +406,7 @@
 		}
 		if (p == NULL)
 		{
-		    semsg(_(e_invargval), "term_opencmd");
+		    semsg(_(e_invalid_value_for_argument_str), "term_opencmd");
 		    return FAIL;
 		}
 	    }
@@ -419,7 +419,7 @@
 						       opt->jo_eof_chars_buf);
 		if (opt->jo_eof_chars == NULL)
 		{
-		    semsg(_(e_invargval), "eof_chars");
+		    semsg(_(e_invalid_value_for_argument_str), "eof_chars");
 		    return FAIL;
 		}
 	    }
@@ -435,7 +435,7 @@
 		    return FAIL;
 		if (opt->jo_term_rows < 0 || opt->jo_term_rows > 1000)
 		{
-		    semsg(_(e_invargval), "term_rows");
+		    semsg(_(e_invalid_value_for_argument_str), "term_rows");
 		    return FAIL;
 		}
 	    }
@@ -470,7 +470,7 @@
 		nr = tv_get_number(item);
 		if (nr <= 0)
 		{
-		    semsg(_(e_invargNval), hi->hi_key, tv_get_string(item));
+		    semsg(_(e_invalid_value_for_argument_str_str), hi->hi_key, tv_get_string(item));
 		    return FAIL;
 		}
 		opt->jo_bufnr_buf = buflist_findnr(nr);
@@ -482,7 +482,7 @@
 		if (opt->jo_bufnr_buf->b_nwindows == 0
 			|| opt->jo_bufnr_buf->b_term == NULL)
 		{
-		    semsg(_(e_invarg2), "bufnr");
+		    semsg(_(e_invalid_argument_str), "bufnr");
 		    return FAIL;
 		}
 	    }
@@ -509,7 +509,7 @@
 						       opt->jo_term_kill_buf);
 		if (opt->jo_term_kill == NULL)
 		{
-		    semsg(_(e_invargval), "term_kill");
+		    semsg(_(e_invalid_value_for_argument_str), "term_kill");
 		    return FAIL;
 		}
 	    }
@@ -523,14 +523,14 @@
 		p = tv_get_string_chk(item);
 		if (p == NULL)
 		{
-		    semsg(_(e_invargval), "tty_type");
+		    semsg(_(e_invalid_value_for_argument_str), "tty_type");
 		    return FAIL;
 		}
 		// Allow empty string, "winpty", "conpty".
 		if (!(*p == NUL || STRCMP(p, "winpty") == 0
 					          || STRCMP(p, "conpty") == 0))
 		{
-		    semsg(_(e_invargval), "tty_type");
+		    semsg(_(e_invalid_value_for_argument_str), "tty_type");
 		    return FAIL;
 		}
 		opt->jo_tty_type = p[0];
@@ -548,7 +548,7 @@
 		if (item == NULL || item->v_type != VAR_LIST
 			|| item->vval.v_list == NULL)
 		{
-		    semsg(_(e_invargval), "ansi_colors");
+		    semsg(_(e_invalid_value_for_argument_str), "ansi_colors");
 		    return FAIL;
 		}
 
@@ -578,7 +578,7 @@
 
 		if (n != 16 || li != NULL)
 		{
-		    semsg(_(e_invargval), "ansi_colors");
+		    semsg(_(e_invalid_value_for_argument_str), "ansi_colors");
 		    return FAIL;
 		}
 
@@ -596,7 +596,7 @@
 		p = tv_get_string_buf_chk(item, opt->jo_term_highlight_buf);
 		if (p == NULL || *p == NUL)
 		{
-		    semsg(_(e_invargval), "term_highlight");
+		    semsg(_(e_invalid_value_for_argument_str), "term_highlight");
 		    return FAIL;
 		}
 		opt->jo_term_highlight = p;
@@ -610,7 +610,7 @@
 							opt->jo_term_api_buf);
 		if (opt->jo_term_api == NULL)
 		{
-		    semsg(_(e_invargval), "term_api");
+		    semsg(_(e_invalid_value_for_argument_str), "term_api");
 		    return FAIL;
 		}
 	    }
@@ -621,7 +621,7 @@
 		    break;
 		if (item->v_type != VAR_DICT)
 		{
-		    semsg(_(e_invargval), "env");
+		    semsg(_(e_invalid_value_for_argument_str), "env");
 		    return FAIL;
 		}
 		opt->jo_set2 |= JO2_ENV;
@@ -640,7 +640,7 @@
 #endif
 				)
 		{
-		    semsg(_(e_invargval), "cwd");
+		    semsg(_(e_invalid_value_for_argument_str), "cwd");
 		    return FAIL;
 		}
 		opt->jo_set2 |= JO2_CWD;
@@ -685,7 +685,7 @@
 		    opt->jo_part = PART_OUT;
 		else
 		{
-		    semsg(_(e_invargNval), "part", val);
+		    semsg(_(e_invalid_value_for_argument_str_str), "part", val);
 		    return FAIL;
 		}
 	    }
@@ -705,7 +705,7 @@
 						      opt->jo_stoponexit_buf);
 		if (opt->jo_stoponexit == NULL)
 		{
-		    semsg(_(e_invargval), "stoponexit");
+		    semsg(_(e_invalid_value_for_argument_str), "stoponexit");
 		    return FAIL;
 		}
 	    }
@@ -722,7 +722,7 @@
 	}
     if (todo > 0)
     {
-	semsg(_(e_invarg2), hi->hi_key);
+	semsg(_(e_invalid_argument_str), hi->hi_key);
 	return FAIL;
     }
 
@@ -1385,7 +1385,7 @@
 	cmd = argvars[0].vval.v_string;
 	if (cmd == NULL || *skipwhite(cmd) == NUL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    goto theend;
 	}
 
@@ -1396,7 +1396,7 @@
 	    || argvars[0].vval.v_list == NULL
 	    || argvars[0].vval.v_list->lv_len < 1)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	goto theend;
     }
     else
@@ -1409,7 +1409,7 @@
 	// Empty command is invalid.
 	if (argc == 0 || *skipwhite((char_u *)argv[0]) == NUL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    goto theend;
 	}
 #ifndef USE_ARGV
@@ -1418,7 +1418,7 @@
 	cmd = ga.ga_data;
 	if (cmd == NULL || *skipwhite(cmd) == NUL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    goto theend;
 	}
 #endif
@@ -1512,7 +1512,7 @@
 	arg = tv_get_string_chk(&argvars[1]);
 	if (arg == NULL)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return 0;
 	}
     }
@@ -1775,7 +1775,7 @@
 
     if (tv->v_type != VAR_JOB)
     {
-	semsg(_(e_invarg2), tv_get_string(tv));
+	semsg(_(e_invalid_argument_str), tv_get_string(tv));
 	return NULL;
     }
     job = tv->vval.v_job;
diff --git a/src/json.c b/src/json.c
index a8d3a09..78a3a8e 100644
--- a/src/json.c
+++ b/src/json.c
@@ -933,7 +933,7 @@
 		top_item->jd_key = tv_get_string_buf_chk(cur_item, key_buf);
 		if (top_item->jd_key == NULL)
 		{
-		    emsg(_(e_invarg));
+		    emsg(_(e_invalid_argument));
 		    retval = FAIL;
 		    goto theend;
 		}
@@ -1164,7 +1164,7 @@
     reader.js_fill = NULL;
     reader.js_used = 0;
     if (json_decode_all(&reader, rettv, JSON_JS) != OK)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 }
 
 /*
diff --git a/src/list.c b/src/list.c
index 838991b..42f9765 100644
--- a/src/list.c
+++ b/src/list.c
@@ -1658,7 +1658,7 @@
 
     if (argvars[0].v_type != VAR_LIST)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -2128,7 +2128,7 @@
 		info->item_compare_func = tv_get_string(&argvars[1]);
 	    else if (nr != 0)
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		return FAIL;
 	    }
 	}
@@ -2670,7 +2670,7 @@
     {
 	if (argvars[2].v_type != VAR_UNKNOWN
 		&& argvars[3].v_type != VAR_UNKNOWN)
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else
 	    n = dict_count(argvars[0].vval.v_dict, &argvars[1], ic);
     }
diff --git a/src/map.c b/src/map.c
index 311f4da..94d2bdf 100644
--- a/src/map.c
+++ b/src/map.c
@@ -916,7 +916,7 @@
     local = (STRCMP(arg, "<buffer>") == 0);
     if (!local && *arg != NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -2753,7 +2753,7 @@
     switch (do_map((*cmdp == 'n') ? 2 : (*cmdp == 'u'),
 						    eap->arg, mode, isabbrev))
     {
-	case 1: emsg(_(e_invarg));
+	case 1: emsg(_(e_invalid_argument));
 		break;
 	case 2: emsg((isabbrev ? _(e_no_such_abbreviation)
 						      : _(e_no_such_mapping)));
diff --git a/src/mark.c b/src/mark.c
index 867833f..dc9bece 100644
--- a/src/mark.c
+++ b/src/mark.c
@@ -787,9 +787,9 @@
 	// clear all marks
 	clrallmarks(curbuf);
     else if (eap->forceit)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else if (*eap->arg == NUL)
-	emsg(_(e_argreq));
+	emsg(_(e_argument_required));
     else
     {
 	// clear specified marks only
@@ -809,7 +809,7 @@
 				    : ASCII_ISUPPER(p[2])))
 			    || to < from)
 		    {
-			semsg(_(e_invarg2), p);
+			semsg(_(e_invalid_argument_str), p);
 			return;
 		    }
 		    p += 2;
@@ -848,7 +848,7 @@
 		    case '<': curbuf->b_visual.vi_start.lnum = 0; break;
 		    case '>': curbuf->b_visual.vi_end.lnum   = 0; break;
 		    case ' ': break;
-		    default:  semsg(_(e_invarg2), p);
+		    default:  semsg(_(e_invalid_argument_str), p);
 			      return;
 		}
 	}
diff --git a/src/match.c b/src/match.c
index 3b5c18e..f1c7442 100644
--- a/src/match.c
+++ b/src/match.c
@@ -69,7 +69,7 @@
     }
     if (pat != NULL && (regprog = vim_regcomp(pat, RE_MAGIC)) == NULL)
     {
-	semsg(_(e_invarg2), pat);
+	semsg(_(e_invalid_argument_str), pat);
 	return -1;
     }
 
@@ -1087,7 +1087,7 @@
 	    if (li->li_tv.v_type != VAR_DICT
 		    || (d = li->li_tv.vval.v_dict) == NULL)
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		return;
 	    }
 	    if (!(dict_find(d, (char_u *)"group", -1) != NULL
@@ -1096,7 +1096,7 @@
 			&& dict_find(d, (char_u *)"priority", -1) != NULL
 			&& dict_find(d, (char_u *)"id", -1) != NULL))
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		return;
 	    }
 	    li = li->li_next;
@@ -1394,7 +1394,7 @@
 	{
 	    // There must be two arguments.
 	    vim_free(g);
-	    semsg(_(e_invarg2), eap->arg);
+	    semsg(_(e_invalid_argument_str), eap->arg);
 	    return;
 	}
 	end = skip_regexp(p + 1, *p, TRUE);
@@ -1409,7 +1409,7 @@
 	    if (*end != *p)
 	    {
 		vim_free(g);
-		semsg(_(e_invarg2), p);
+		semsg(_(e_invalid_argument_str), p);
 		return;
 	    }
 
diff --git a/src/mbyte.c b/src/mbyte.c
index 0e9c926..bbbb506 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -530,7 +530,7 @@
 	// Windows: accept only valid codepage numbers, check below.
 	if (p_enc[6] != 'c' || p_enc[7] != 'p'
 			      || (enc_dbcs_new = atoi((char *)p_enc + 8)) == 0)
-	    return e_invarg;
+	    return e_invalid_argument;
 #else
 	// Unix: accept any "2byte-" name, assume current locale.
 	enc_dbcs_new = DBCS_2BYTE;
@@ -563,7 +563,7 @@
 	}
     }
     else    // Don't know what encoding this is, reject it.
-	return e_invarg;
+	return e_invalid_argument;
 
     if (enc_dbcs_new != 0)
     {
diff --git a/src/menu.c b/src/menu.c
index c0a1f3a..e821b05 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -273,7 +273,7 @@
     menu_path = arg;
     if (*menu_path == '.')
     {
-	semsg(_(e_invarg2), menu_path);
+	semsg(_(e_invalid_argument_str), menu_path);
 	goto theend;
     }
 
@@ -2508,7 +2508,7 @@
 	    case 't': mode_idx = MENU_INDEX_TERMINAL; break;
 	    case 'i': mode_idx = MENU_INDEX_INSERT; break;
 	    case 'c': mode_idx = MENU_INDEX_CMDLINE; break;
-	    default: semsg(_(e_invarg2), arg);
+	    default: semsg(_(e_invalid_argument_str), arg);
 		     return;
 	}
 	arg = skipwhite(arg + 2);
@@ -2698,7 +2698,7 @@
 	if (arg == to || ends_excmd2(eap->arg, from)
 		      || ends_excmd2(eap->arg, to)
 		      || !ends_excmd2(eap->arg, skipwhite(arg)))
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else
 	{
 	    if (ga_grow(&menutrans_ga, 1) == OK)
diff --git a/src/message.c b/src/message.c
index 8768065..36e4548 100644
--- a/src/message.c
+++ b/src/message.c
@@ -1051,7 +1051,7 @@
 
     if (*eap->arg != NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
diff --git a/src/misc2.c b/src/misc2.c
index 4400d4a..3a8012a 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -1375,7 +1375,7 @@
 	    vim_str2nr(bp + 5, NULL, &l, STR2NR_ALL, NULL, NULL, 0, TRUE);
 	    if (l == 0)
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		return 0;
 	    }
 	    bp += l + 5;
@@ -1413,7 +1413,7 @@
 								  &n, 0, TRUE);
 		if (l == 0)
 		{
-		    emsg(_(e_invarg));
+		    emsg(_(e_invalid_argument));
 		    return 0;
 		}
 		key = (int)n;
diff --git a/src/ops.c b/src/ops.c
index 714c6bd..21df1a6 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -745,7 +745,7 @@
 	    msg_silent = msg_silent_save;
 	    if (n != 'y')
 	    {
-		emsg(_(e_abort));
+		emsg(_(e_command_aborted));
 		return FAIL;
 	    }
 	}
diff --git a/src/option.c b/src/option.c
index 2aab253..2f81f8b 100644
--- a/src/option.c
+++ b/src/option.c
@@ -1325,7 +1325,7 @@
 		}
 		if (arg[len] != '>')
 		{
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 		    goto skip;
 		}
 		arg[len] = NUL;			    // put NUL after name
@@ -1577,7 +1577,7 @@
 		{
 		    if (nextchar == '=' || nextchar == ':')
 		    {
-			errmsg = e_invarg;
+			errmsg = e_invalid_argument;
 			goto skip;
 		    }
 
@@ -1627,7 +1627,7 @@
 		    if (vim_strchr((char_u *)"=:&<", nextchar) == NULL
 							       || prefix != 1)
 		    {
-			errmsg = e_invarg;
+			errmsg = e_invalid_argument;
 			goto skip;
 		    }
 
@@ -1669,7 +1669,7 @@
 			    value = string_to_key(arg, FALSE);
 			    if (value == 0 && (long *)varp != &p_wcm)
 			    {
-				errmsg = e_invarg;
+				errmsg = e_invalid_argument;
 				goto skip;
 			    }
 			}
@@ -3471,7 +3471,7 @@
 	}
 	else if (curwin->w_p_fdc > 12)
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    curwin->w_p_fdc = 12;
 	}
     }
@@ -3508,7 +3508,7 @@
     {
 	if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST)
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    curbuf->b_p_iminsert = B_IMODE_NONE;
 	}
 	p_iminsert = curbuf->b_p_iminsert;
@@ -3525,7 +3525,7 @@
     else if (pp == &p_imst)
     {
 	if (p_imst != IM_ON_THE_SPOT && p_imst != IM_OVER_THE_SPOT)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -3541,7 +3541,7 @@
     {
 	if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST)
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    curbuf->b_p_imsearch = B_IMODE_NONE;
 	}
 	p_imsearch = curbuf->b_p_imsearch;
@@ -3601,7 +3601,7 @@
 	}
 	else if (curwin->w_p_cole > 3)
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    curwin->w_p_cole = 3;
 	}
     }
@@ -3616,7 +3616,7 @@
     else if (pp == &p_pyx)
     {
 	if (p_pyx != 0 && p_pyx != 2 && p_pyx != 3)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -3647,7 +3647,7 @@
 	}
 	if (curwin->w_p_nuw > 20)
 	{
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	    curwin->w_p_nuw = 20;
 	}
 	curwin->w_nrwidth_line_count = 0; // trigger a redraw
@@ -3759,12 +3759,12 @@
     }
     else if (p_hi > 10000)
     {
-	errmsg = e_invarg;
+	errmsg = e_invalid_argument;
 	p_hi = 10000;
     }
     if (p_re < 0 || p_re > 2)
     {
-	errmsg = e_invarg;
+	errmsg = e_invalid_argument;
 	p_re = 0;
     }
     if (p_report < 0)
diff --git a/src/optionstr.c b/src/optionstr.c
index ae584d0..85405ed 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -687,7 +687,7 @@
 			    ? "/\\*?[|;&<>\r\n" : "/\\*?[<>\r\n")) != NULL)
 	  || ((get_option_flags(opt_idx) & P_NDNAME)
 		    && vim_strpbrk(*varp, (char_u *)"*?[|;&<>\r\n") != NULL))
-	errmsg = e_invarg;
+	errmsg = e_invalid_argument;
 
     // 'term'
     else if (varp == &T_NAME)
@@ -732,14 +732,14 @@
 	else
 	{
 	    if (opt_strings_flags(bkc, p_bkc_values, flags, TRUE) != OK)
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	    if ((((int)*flags & BKC_AUTO) != 0)
 		    + (((int)*flags & BKC_YES) != 0)
 		    + (((int)*flags & BKC_NO) != 0) != 1)
 	    {
 		// Must have exactly one of "auto", "yes"  and "no".
 		(void)opt_strings_flags(oldval, p_bkc_values, flags, TRUE);
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	    }
 	}
     }
@@ -756,7 +756,7 @@
     else if (varp == &curwin->w_p_briopt)
     {
 	if (briopt_check(curwin) == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -771,7 +771,7 @@
 	if (init_chartab() == FAIL)
 	{
 	    did_chartab = TRUE;	    // need to restore it below
-	    errmsg = e_invarg;	    // error in value
+	    errmsg = e_invalid_argument;	    // error in value
 	}
     }
 
@@ -797,7 +797,7 @@
 				  || gvarp == &curwin->w_allbuf_opt.wo_culopt)
     {
 	if (**varp == NUL || fill_culopt_flags(*varp, curwin) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'colorcolumn'
@@ -814,7 +814,7 @@
 	{
 	    if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL))
 	    {
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 		break;
 	    }
 	    if (s[2] == NUL)
@@ -827,14 +827,14 @@
     else if (varp == &p_hl)
     {
 	if (highlight_changed() == FAIL)
-	    errmsg = e_invarg;	// invalid flags
+	    errmsg = e_invalid_argument;	// invalid flags
     }
 
     // 'nrformats'
     else if (gvarp == &p_nf)
     {
 	if (check_opt_strings(*varp, p_nf_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_SESSION
@@ -842,19 +842,19 @@
     else if (varp == &p_ssop)
     {
 	if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR))
 	{
 	    // Don't allow both "sesdir" and "curdir".
 	    (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, TRUE);
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	}
     }
     // 'viewoptions'
     else if (varp == &p_vop)
     {
 	if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -862,14 +862,14 @@
     else if (varp == &p_sbo)
     {
 	if (check_opt_strings(p_sbo, p_scbopt_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'ambiwidth'
     else if (varp == &p_ambw || varp == &p_emoji)
     {
 	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else if (set_chars_option(curwin, &p_fcs) != NULL)
 	    errmsg = _(e_conflicts_with_value_of_fillchars);
 	else
@@ -920,21 +920,21 @@
 #endif
 	}
 	else
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'wildmode'
     else if (varp == &p_wim)
     {
 	if (check_opt_wim() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'wildoptions'
     else if (varp == &p_wop)
     {
 	if (check_opt_strings(p_wop, p_wop_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_WAK
@@ -943,7 +943,7 @@
     {
 	if (*p_wak == NUL
 		|| check_opt_strings(p_wak, p_wak_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 # ifdef FEAT_MENU
 #  ifdef FEAT_GUI_MOTIF
 	else if (gui.in_use)
@@ -962,7 +962,7 @@
     else if (varp == &p_ei)
     {
 	if (check_ei() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'encoding', 'fileencoding', 'termencoding' and 'makeencoding'
@@ -976,7 +976,7 @@
 	    else if (vim_strchr(*varp, ',') != NULL)
 		// No comma allowed in 'fileencoding'; catches confusing it
 		// with 'fileencodings'.
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	    else
 	    {
 		// May show a "+" in the title now.
@@ -1029,7 +1029,7 @@
 		{
 		    semsg(_("E950: Cannot convert between %s and %s"),
 			    p_tenc, p_enc);
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 		}
 	    }
 
@@ -1069,7 +1069,7 @@
     else if (varp == &p_imak)
     {
 	if (!im_xim_isvalid_imactivate())
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -1077,7 +1077,7 @@
     else if (varp == &curbuf->b_p_keymap)
     {
 	if (!valid_filetype(*varp))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    int	    secure_save = secure;
@@ -1129,7 +1129,7 @@
 	if (!curbuf->b_p_ma && !(opt_flags & OPT_GLOBAL))
 	    errmsg = e_cannot_make_changes_modifiable_is_off;
 	else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    // may also change 'textmode'
@@ -1151,7 +1151,7 @@
     else if (varp == &p_ffs)
     {
 	if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    // also change 'textauto'
@@ -1186,9 +1186,9 @@
 	else
 	    p = p_cm;
 	if (check_opt_strings(p, p_cm_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else if (crypt_self_test() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    // When setting the global value to empty, make it "zip".
@@ -1257,7 +1257,7 @@
 		}
 		if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ','))
 		{
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 		    break;
 		}
 		if (*p == NUL)
@@ -1271,7 +1271,7 @@
 	    {
 		if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ','))
 		{
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 		    break;
 		}
 		if (p[3] == NUL)
@@ -1356,7 +1356,7 @@
     {
 	verbose_stop();
 	if (*p_vfile != NUL && verbose_open() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_VIMINFO
@@ -1643,7 +1643,7 @@
 	// that.
 	mch_setmouse(FALSE);
 	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	    check_mouse_termcode();
 	if (termcap_active)
@@ -1656,14 +1656,14 @@
     {
 	if (*p_sel == NUL
 		|| check_opt_strings(p_sel, p_sel_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'selectmode'
     else if (varp == &p_slm)
     {
 	if (check_opt_strings(p_slm, p_slm_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_BROWSE
@@ -1672,7 +1672,7 @@
     {
 	if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK
 		&& !mch_isdir(p_bsdir))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -1680,7 +1680,7 @@
     else if (varp == &p_km)
     {
 	if (check_opt_strings(p_km, p_km_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    km_stopsel = (vim_strchr(p_km, 'o') != NULL);
@@ -1692,7 +1692,7 @@
     else if (varp == &p_mousem)
     {
 	if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 #if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002)
 	else if (*p_mousem != *oldval)
 	    // Changed from "extend" to "popup" or "popup_setpos" or vv: need
@@ -1705,21 +1705,21 @@
     else if (varp == &p_swb)
     {
 	if (opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'debug'
     else if (varp == &p_debug)
     {
 	if (check_opt_strings(p_debug, p_debug_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'display'
     else if (varp == &p_dy)
     {
 	if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	    (void)init_chartab();
 
@@ -1729,7 +1729,7 @@
     else if (varp == &p_ead)
     {
 	if (check_opt_strings(p_ead, p_ead_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_CLIPBOARD
@@ -1748,7 +1748,7 @@
 
 	if ((is_spellfile && !valid_spellfile(*varp))
 	    || (!is_spellfile && !valid_spelllang(*varp)))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	    errmsg = did_set_spell_option(is_spellfile);
     }
@@ -1761,19 +1761,19 @@
     else if (varp == &(curwin->w_s->b_p_spo))
     {
 	if (**varp != NUL && STRCMP("camel", *varp) != 0)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     // 'spellsuggest'
     else if (varp == &p_sps)
     {
 	if (spell_check_sps() != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     // 'mkspellmem'
     else if (varp == &p_msm)
     {
 	if (spell_check_msm() != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -1781,14 +1781,14 @@
     else if (gvarp == &p_bh)
     {
 	if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // When 'buftype' is set, check for valid value.
     else if (gvarp == &p_bt)
     {
 	if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    if (curwin->w_status_height)
@@ -1876,7 +1876,7 @@
     else if (varp == &p_cot)
     {
 	if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	    completeopt_was_set();
     }
@@ -1887,7 +1887,7 @@
     {
 	if (check_opt_strings(p_csl, p_csl_values, FALSE) != OK
 		|| check_opt_strings(curbuf->b_p_csl, p_csl_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -1896,7 +1896,7 @@
     else if (varp == &curwin->w_p_scl)
     {
 	if (check_opt_strings(*varp, p_scl_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	// When changing the 'signcolumn' to or from 'number', recompute the
 	// width of the number column if 'number' or 'relativenumber' is set.
 	if (((*oldval == 'n' && *(oldval + 1) == 'u')
@@ -1913,7 +1913,7 @@
     {
 	if (opt_strings_flags(p_toolbar, p_toolbar_values,
 			      &toolbar_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    out_flush();
@@ -1928,7 +1928,7 @@
     else if (varp == &p_tbis)
     {
 	if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    out_flush();
@@ -1961,15 +1961,15 @@
 	if (VIM_ISDIGIT(*p_bs))
 	{
 	    if (*p_bs > '3' || p_bs[1] != NUL)
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	}
 	else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     else if (varp == &p_bo)
     {
 	if (opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'tagcase'
@@ -1993,14 +1993,14 @@
 	    *flags = 0;
 	else if (*p == NUL
 		|| opt_strings_flags(p, p_tc_values, flags, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'casemap'
     else if (varp == &p_cmp)
     {
 	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_DIFF
@@ -2008,7 +2008,7 @@
     else if (varp == &p_dip)
     {
 	if (diffopt_changed() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -2018,7 +2018,7 @@
     {
 	if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK
 		|| *curwin->w_p_fdm == NUL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    foldUpdateAll(curwin);
@@ -2033,7 +2033,7 @@
 	if (p == NULL)
 	    errmsg = N_("E536: comma required");
 	else if (p == *varp || p[1] == NUL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else if (foldmethodIsMarker(curwin))
 	    foldUpdateAll(curwin);
     }
@@ -2047,13 +2047,13 @@
     else if (varp == &p_fdo)
     {
 	if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     // 'foldclose'
     else if (varp == &p_fcl)
     {
 	if (check_opt_strings(p_fcl, p_fcl_values, TRUE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     // 'foldignore'
     else if (gvarp == &curwin->w_allbuf_opt.wo_fdi)
@@ -2081,7 +2081,7 @@
 	else
 	{
 	    if (opt_strings_flags(ve, p_ve_values, flags, TRUE) != OK)
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	    else if (STRCMP(p_ve, oldval) != 0)
 	    {
 		// Recompute cursor position in case the new 've' setting
@@ -2105,7 +2105,7 @@
 			|| vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL
 			|| (p[2] != NUL && p[2] != ','))
 		{
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 		    break;
 		}
 		else if (p[2] == NUL)
@@ -2131,14 +2131,14 @@
     else if (varp == &p_rop)
     {
 	if (!gui_mch_set_rendering_options(p_rop))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
     else if (gvarp == &p_ft)
     {
 	if (!valid_filetype(*varp))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    value_changed = STRCMP(oldval, *varp) != 0;
@@ -2153,7 +2153,7 @@
     else if (gvarp == &p_syn)
     {
 	if (!valid_filetype(*varp))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	{
 	    value_changed = STRCMP(oldval, *varp) != 0;
@@ -2171,7 +2171,7 @@
     {
 	if (*curwin->w_p_twk != NUL
 				  && string_to_key(curwin->w_p_twk, TRUE) == 0)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
     // 'termwinsize'
     else if (varp == &curwin->w_p_tws)
@@ -2182,7 +2182,7 @@
 	    if (p == curwin->w_p_tws
 		    || (*p != 'x' && *p != '*')
 		    || *skipdigits(p + 1) != NUL)
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 	}
     }
     // 'wincolor'
@@ -2193,7 +2193,7 @@
     else if (varp == &p_twt)
     {
 	if (check_opt_strings(*varp, p_twt_values, FALSE) != OK)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 # endif
 #endif
@@ -2220,7 +2220,7 @@
 		    continue;
 		if (*cp == ',' && cp > *varp && *(cp-1) != ',')
 		    continue;
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 		break;
 	    }
 	    if (errmsg == NULL)
@@ -2232,7 +2232,7 @@
 			vim_free(oldarray);
 		}
 		else
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 	    }
 	}
     }
@@ -2258,7 +2258,7 @@
 		    continue;
 		if (*cp == ',' && cp > *varp && *(cp-1) != ',')
 		    continue;
-		errmsg = e_invarg;
+		errmsg = e_invalid_argument;
 		break;
 	    }
 	    if (errmsg == NULL)
@@ -2274,7 +2274,7 @@
 #endif
 		}
 		else
-		    errmsg = e_invarg;
+		    errmsg = e_invalid_argument;
 	    }
 	}
     }
@@ -2285,14 +2285,14 @@
     else if (varp == &p_pvp)
     {
 	if (parse_previewpopup(NULL) == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 # ifdef FEAT_QUICKFIX
     // 'completepopup'
     else if (varp == &p_cpp)
     {
 	if (parse_completepopup(NULL) == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
 	else
 	    popup_close_info();
     }
@@ -2390,21 +2390,21 @@
     else if (gvarp == &p_cfu)
     {
 	if (set_completefunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'omnifunc'
     else if (gvarp == &p_ofu)
     {
 	if (set_omnifunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'thesaurusfunc'
     else if (gvarp == &p_tsrfu)
     {
 	if (set_thesaurusfunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -2414,14 +2414,14 @@
     else if (gvarp == &p_imaf)
     {
 	if (set_imactivatefunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     // 'imstatusfunc'
     else if (gvarp == &p_imsf)
     {
 	if (set_imstatusfunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -2429,7 +2429,7 @@
     else if (varp == &p_opfunc)
     {
 	if (set_operatorfunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
 #ifdef FEAT_QUICKFIX
@@ -2437,7 +2437,7 @@
     else if (varp == &p_qftf)
     {
 	if (qf_process_qftf_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
@@ -2446,7 +2446,7 @@
     else if (gvarp == &p_tfu)
     {
 	if (set_tagfunc_option() == FAIL)
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 #endif
 
diff --git a/src/popupwin.c b/src/popupwin.c
index 7b74261..dfe0cac 100644
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -407,7 +407,7 @@
 	    return poppos_entries[nr].pp_val;
 
     if (give_error)
-	semsg(_(e_invarg2), str);
+	semsg(_(e_invalid_argument_str), str);
     return POPPOS_NONE;
 }
 
@@ -468,7 +468,7 @@
 	    if (nr <= 0)
 		nr = find_prop_type_id(str, NULL);
 	    if (nr <= 0)
-		semsg(_(e_invarg2), str);
+		semsg(_(e_invalid_argument_str), str);
 	    else
 		wp->w_popup_prop_type = nr;
 	}
@@ -497,7 +497,7 @@
 	else if (STRCMP(s, "expr") == 0)
 	    flags = FIND_IDENT | FIND_STRING | FIND_EVAL;
 	else if (STRCMP(s, "any") != 0)
-	    semsg(_(e_invarg2), s);
+	    semsg(_(e_invalid_argument_str), s);
 	if (flags != 0)
 	{
 	    if (mousemoved)
@@ -546,7 +546,7 @@
 	}
     }
     else
-	semsg(_(e_invarg2), tv_get_string(&di->di_tv));
+	semsg(_(e_invalid_argument_str), tv_get_string(&di->di_tv));
 }
 
     static void
@@ -559,7 +559,7 @@
     if (di != NULL)
     {
 	if (di->di_tv.v_type != VAR_STRING)
-	    semsg(_(e_invargval), name);
+	    semsg(_(e_invalid_value_for_argument_str), name);
 	else
 	{
 	    str = tv_get_string(&di->di_tv);
@@ -735,7 +735,7 @@
 	else
 	    ok = FALSE;
 	if (!ok)
-	    semsg(_(e_invargNval), "close", tv_get_string(&di->di_tv));
+	    semsg(_(e_invalid_value_for_argument_str_str), "close", tv_get_string(&di->di_tv));
     }
 
     str = dict_get_string(dict, (char_u *)"highlight", FALSE);
@@ -861,7 +861,7 @@
 	    VIM_CLEAR(wp->w_popup_mask_cells);
 	}
 	else
-	    semsg(_(e_invargval), "mask");
+	    semsg(_(e_invalid_value_for_argument_str), "mask");
     }
 
 #if defined(FEAT_TIMERS)
@@ -2645,7 +2645,7 @@
     if (wp != NULL)
     {
 	if (argvars[1].v_type != VAR_STRING && argvars[1].v_type != VAR_LIST)
-	    semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	else
 	{
 	    popup_set_buffer_text(wp->w_buffer, argvars[1]);
diff --git a/src/quickfix.c b/src/quickfix.c
index c007a9c..05cae9e 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -7653,7 +7653,7 @@
     // A dict argument cannot be specified with a non-empty list argument
     if (list->lv_len != 0 && what != NULL)
     {
-	semsg(_(e_invarg2),
+	semsg(_(e_invalid_argument_str),
 			 _("cannot have both a list and a \"what\" argument"));
 	return FAIL;
     }
@@ -7780,7 +7780,7 @@
 
     if (buf == NULL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return FAIL;
     }
 
diff --git a/src/screen.c b/src/screen.c
index 320811b..bc1a6c8 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -4915,19 +4915,19 @@
 		    s = p + len + 1;
 		    c1 = get_encoded_char_adv(&s);
 		    if (char2cells(c1) > 1)
-			return e_invarg;
+			return e_invalid_argument;
 		    if (tab[i].cp == &lcs_chars.tab2)
 		    {
 			if (*s == NUL)
-			    return e_invarg;
+			    return e_invalid_argument;
 			c2 = get_encoded_char_adv(&s);
 			if (char2cells(c2) > 1)
-			    return e_invarg;
+			    return e_invalid_argument;
 			if (!(*s == ',' || *s == NUL))
 			{
 			    c3 = get_encoded_char_adv(&s);
 			    if (char2cells(c3) > 1)
-				return e_invarg;
+				return e_invalid_argument;
 			}
 		    }
 
@@ -4969,12 +4969,12 @@
 			{
 			    c1 = get_encoded_char_adv(&s);
 			    if (char2cells(c1) > 1)
-				return e_invarg;
+				return e_invalid_argument;
 			    ++multispace_len;
 			}
 			if (multispace_len == 0)
 			    // lcs-multispace cannot be an empty string
-			    return e_invarg;
+			    return e_invalid_argument;
 			p = s;
 		    }
 		    else
@@ -4991,7 +4991,7 @@
 		    }
 		}
 		else
-		    return e_invarg;
+		    return e_invalid_argument;
 	    }
 
 	    if (*p == ',')
diff --git a/src/scriptfile.c b/src/scriptfile.c
index 7d0c272..b932258 100644
--- a/src/scriptfile.c
+++ b/src/scriptfile.c
@@ -965,7 +965,7 @@
 cmd_source(char_u *fname, exarg_T *eap)
 {
     if (*fname == NUL)
-	emsg(_(e_argreq));
+	emsg(_(e_argument_required));
 
     else if (eap != NULL && eap->forceit)
 	// ":source!": read Normal mode commands
@@ -1441,7 +1441,7 @@
 #endif
 
     if (got_int)
-	emsg(_(e_interr));
+	emsg(_(e_interrupted));
     ESTACK_CHECK_NOW
     estack_pop();
     if (p_verbose > 1)
@@ -1549,7 +1549,7 @@
     {
 	// :script {scriptId}: edit the script
 	if (!SCRIPT_ID_VALID(eap->line2))
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else
 	{
 	    eap->arg = SCRIPT_ITEM(eap->line2)->sn_name;
@@ -1961,7 +1961,7 @@
 
     nr = getdigits(&eap->arg);
     if (nr == 0 || *eap->arg != NUL)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else if (nr > SCRIPT_VERSION_MAX)
 	semsg(_("E999: scriptversion not supported: %d"), nr);
     else
diff --git a/src/search.c b/src/search.c
index 5851d52..abe71a1 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1120,7 +1120,7 @@
     if (!found)		    // did not find it
     {
 	if (got_int)
-	    emsg(_(e_interr));
+	    emsg(_(e_interrupted));
 	else if ((options & SEARCH_MSG) == SEARCH_MSG)
 	{
 	    if (p_ws)
@@ -3990,7 +3990,7 @@
     else if (!found && action != ACTION_EXPAND)
     {
 	if (got_int || ins_compl_interrupted())
-	    emsg(_(e_interr));
+	    emsg(_(e_interrupted));
 	else if (type == FIND_DEFINE)
 	    emsg(_("E388: Couldn't find definition"));
 	else
@@ -4152,12 +4152,12 @@
 	{
 	    if (di->di_tv.v_type != VAR_LIST)
 	    {
-		semsg(_(e_invarg2), "pos");
+		semsg(_(e_invalid_argument_str), "pos");
 		return;
 	    }
 	    if (list_len(di->di_tv.vval.v_list) != 3)
 	    {
-		semsg(_(e_invarg2), "List format should be [lnum, col, off]");
+		semsg(_(e_invalid_argument_str), "List format should be [lnum, col, off]");
 		return;
 	    }
 	    li = list_find(di->di_tv.vval.v_list, 0L);
@@ -4813,7 +4813,7 @@
     if (argvars[1].v_type != VAR_STRING
 	    || argvars[1].vval.v_string == NULL)
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	return;
     }
 
@@ -4837,7 +4837,7 @@
 		    || di->di_tv.vval.v_string == NULL
 		    || *di->di_tv.vval.v_string == NUL)
 	    {
-		semsg(_(e_invarg2), tv_get_string(&di->di_tv));
+		semsg(_(e_invalid_argument_str), tv_get_string(&di->di_tv));
 		return;
 	    }
 	    key = tv_get_string(&di->di_tv);
@@ -4847,7 +4847,7 @@
 	    cb = get_callback(&di->di_tv);
 	    if (cb.cb_name == NULL)
 	    {
-		semsg(_(e_invargval), "text_cb");
+		semsg(_(e_invalid_value_for_argument_str), "text_cb");
 		return;
 	    }
 	}
diff --git a/src/sign.c b/src/sign.c
index ba1ff0e..1fef769 100644
--- a/src/sign.c
+++ b/src/sign.c
@@ -1379,7 +1379,7 @@
 	}
 	else
 	{
-	    semsg(_(e_invarg2), arg);
+	    semsg(_(e_invalid_argument_str), arg);
 	    failed = TRUE;
 	    break;
 	}
@@ -1422,7 +1422,7 @@
 	//   :sign place group=*
 	if (lnum >= 0 || sign_name != NULL
 		|| (group != NULL && *group == '\0'))
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	else
 	    sign_list_placed(buf, group);
     }
@@ -1432,7 +1432,7 @@
 	if (sign_name == NULL || buf == NULL
 		|| (group != NULL && *group == '\0'))
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
 
@@ -1453,7 +1453,7 @@
 {
     if (lnum >= 0 || sign_name != NULL || (group != NULL && *group == '\0'))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1522,7 +1522,7 @@
 {
     if (sign_name == NULL && group == NULL && id == -1)
     {
-	emsg(_(e_argreq));
+	emsg(_(e_argument_required));
 	return;
     }
 
@@ -1531,7 +1531,7 @@
     {
 	// File or buffer is not specified or an empty group is used
 	// or a line number or a sign name is specified.
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
     (void)sign_jump(id, group, buf);
@@ -1586,7 +1586,7 @@
 	{
 	    if (*signid != -1)
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		return FAIL;
 	    }
 	    *signid = -2;
@@ -1635,7 +1635,7 @@
 	}
 	else
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return FAIL;
 	}
 	arg = skipwhite(arg);
@@ -2471,7 +2471,7 @@
 	return;
     if (sign_id <= 0)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -2537,7 +2537,7 @@
 	    return -1;
 	if (sign_id < 0)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return -1;
 	}
     }
@@ -2599,7 +2599,7 @@
 	lnum = tv_get_lnum(&di->di_tv);
 	if (lnum <= 0)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    goto cleanup;
 	}
     }
@@ -2791,7 +2791,7 @@
 	    sign_id = dict_get_number(dict, (char_u *)"id");
 	    if (sign_id <= 0)
 	    {
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 		goto cleanup;
 	    }
 	}
@@ -2866,7 +2866,7 @@
 
     if (argvars[0].v_type != VAR_STRING)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
diff --git a/src/spell.c b/src/spell.c
index 857a793..17b3ff8 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -4378,7 +4378,7 @@
 	l = (int)STRLEN(curwin->w_s->b_p_spf);
 	if (l > 0 && (l < 4
 			|| STRCMP(curwin->w_s->b_p_spf + l - 4, ".add") != 0))
-	    errmsg = e_invarg;
+	    errmsg = e_invalid_argument;
     }
 
     if (errmsg == NULL)
@@ -4416,7 +4416,7 @@
 	    if (synblock->b_cap_prog == NULL)
 	    {
 		synblock->b_cap_prog = rp; // restore the previous program
-		return e_invarg;
+		return e_invalid_argument;
 	    }
 	}
     }
diff --git a/src/spellfile.c b/src/spellfile.c
index 03da272..dc6647a 100644
--- a/src/spellfile.c
+++ b/src/spellfile.c
@@ -5963,7 +5963,7 @@
     }
 
     if (incount <= 0)
-	emsg(_(e_invarg));	// need at least output and input names
+	emsg(_(e_invalid_argument));	// need at least output and input names
     else if (vim_strchr(gettail(wfname), '_') != NULL)
 	emsg(_("E751: Output file name must not have region name"));
     else if (incount > MAXREGIONS)
diff --git a/src/strings.c b/src/strings.c
index 52cf121..18b2cef 100644
--- a/src/strings.c
+++ b/src/strings.c
@@ -1061,7 +1061,7 @@
 					   && argvars[2].v_type != VAR_NUMBER
 					   && argvars[2].v_type != VAR_BOOL))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1163,7 +1163,7 @@
 	base = (int)tv_get_number(&argvars[1]);
 	if (base != 2 && base != 8 && base != 10 && base != 16)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
 	if (argvars[2].v_type != VAR_UNKNOWN && tv_get_bool(&argvars[2]))
@@ -1680,7 +1680,7 @@
 	if (STRLEN(fromstr) != STRLEN(tostr))
 	{
 error:
-	    semsg(_(e_invarg2), fromstr);
+	    semsg(_(e_invalid_argument_str), fromstr);
 	    ga_clear(&ga);
 	    return;
 	}
@@ -1788,7 +1788,7 @@
 
     if (argvars[1].v_type != VAR_UNKNOWN && argvars[1].v_type != VAR_STRING)
     {
-	semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	return;
     }
 
@@ -1806,7 +1806,7 @@
 		return;
 	    if (dir < 0 || dir > 2)
 	    {
-		semsg(_(e_invarg2), tv_get_string(&argvars[2]));
+		semsg(_(e_invalid_argument_str), tv_get_string(&argvars[2]));
 		return;
 	    }
 	}
diff --git a/src/syntax.c b/src/syntax.c
index 3002bc9..579c194 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -4923,7 +4923,7 @@
     if (rest != NULL)
 	set_nextcmd(eap, rest);
     else
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 
     redraw_curbuf_later(SOME_VALID);
     syn_stack_free_all(curwin->w_s);		// Need to recompute all syntax.
@@ -5032,7 +5032,7 @@
     vim_free(syn_opt_arg.next_list);
 
     if (rest == NULL && called_emsg == orig_called_emsg)
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 }
 
 /*
@@ -5298,7 +5298,7 @@
 	if (not_enough)
 	    semsg(_("E399: Not enough arguments: syntax region %s"), arg);
 	else if (illegal || rest == NULL)
-	    semsg(_(e_invarg2), arg);
+	    semsg(_(e_invalid_argument_str), arg);
     }
 }
 
@@ -5607,7 +5607,7 @@
 	    clstr_list = NULL;
 	    if (get_id_list(&rest, opt_len, &clstr_list, eap->skip) == FAIL)
 	    {
-		semsg(_(e_invarg2), rest);
+		semsg(_(e_invalid_argument_str), rest);
 		break;
 	    }
 	    if (scl_id >= 0)
@@ -5628,7 +5628,7 @@
     if (!got_clstr)
 	emsg(_("E400: No cluster specified"));
     if (rest == NULL || !ends_excmd2(eap->cmd, rest))
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 }
 
 /*
@@ -6632,7 +6632,7 @@
     else if (STRCMP(eap->arg, "report") == 0)
 	syntime_report();
     else
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
 }
 
     static void
diff --git a/src/terminal.c b/src/terminal.c
index a88e4bc..46307ea 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -459,7 +459,7 @@
 	    && argvar->vval.v_list != NULL
 	    && argvar->vval.v_list->lv_first == &range_list_item))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return NULL;
     }
 
@@ -872,7 +872,7 @@
 		tty_type = 'c';
 	    else
 	    {
-		semsg(e_invargval, "type");
+		semsg(e_invalid_value_for_argument_str, "type");
 		goto theend;
 	    }
 	    opt.jo_set2 |= JO2_TTY_TYPE;
@@ -4241,7 +4241,7 @@
 		|| var->di_tv.vval.v_list == NULL
 		|| var->di_tv.vval.v_list->lv_first == &range_list_item
 		|| set_ansi_colors_list(vterm, var->di_tv.vval.v_list) == FAIL))
-	semsg(_(e_invarg2), "g:terminal_ansi_colors");
+	semsg(_(e_invalid_argument_str), "g:terminal_ansi_colors");
 }
 #endif
 
@@ -5368,7 +5368,7 @@
 	fname2 = tv_get_string_buf_chk(&argvars[1], buf2);
     if (fname1 == NULL || (do_diff && fname2 == NULL))
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
     fd1 = mch_fopen((char *)fname1, READBIN);
@@ -5414,7 +5414,7 @@
 	// With "bufnr" argument: enter the window with this buffer and make it
 	// empty.
 	if (wp == NULL)
-	    semsg(_(e_invarg2), "bufnr");
+	    semsg(_(e_invalid_argument_str), "bufnr");
 	else
 	{
 	    buf = curbuf;
@@ -6093,7 +6093,7 @@
 		p = buf->b_term->tl_job->jv_tty_in;
 	    break;
 	default:
-	    semsg(_(e_invarg2), tv_get_string(&argvars[1]));
+	    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[1]));
 	    return;
     }
     if (p != NULL)
@@ -6351,7 +6351,7 @@
     }
 
     if (set_ansi_colors_list(term->tl_vterm, argvars[1].vval.v_list) == FAIL)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 }
 #endif
 
@@ -6689,7 +6689,7 @@
     }
     if (cmd == NULL || *cmd == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	goto failed;
     }
 
@@ -7037,7 +7037,7 @@
     }
     if (cmd == NULL || *cmd == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	goto failed;
     }
 
diff --git a/src/testing.c b/src/testing.c
index 1037c44..782d35c 100644
--- a/src/testing.c
+++ b/src/testing.c
@@ -907,12 +907,12 @@
 	    || argvars[1].v_type != VAR_NUMBER
 	    || argvars[1].vval.v_number < 0
 	    || argvars[2].v_type != VAR_NUMBER)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	alloc_fail_id = argvars[0].vval.v_number;
 	if (alloc_fail_id >= aid_last)
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	alloc_fail_countdown = argvars[1].vval.v_number;
 	alloc_fail_repeat = argvars[2].vval.v_number;
 	did_outofmem_msg = FALSE;
@@ -967,7 +967,7 @@
 	return;
 
     if (argvars[0].v_type != VAR_STRING)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	char_u *name = tv_get_string(&argvars[0]);
@@ -975,7 +975,7 @@
 	if (STRCMP(name, (char_u *)"need_fileinfo") == 0)
 	    rettv->vval.v_number = need_fileinfo;
 	else
-	    semsg(_(e_invarg2), name);
+	    semsg(_(e_invalid_argument_str), name);
     }
 }
 
@@ -991,12 +991,12 @@
 	return;
 
     if (argvars[0].v_type != VAR_STRING)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	name = tv_get_string(&argvars[0]);
 	if (reset_option_was_set(name) == FAIL)
-	    semsg(_(e_invarg2), name);
+	    semsg(_(e_invalid_argument_str), name);
     }
 }
 
@@ -1017,7 +1017,7 @@
 
     if (argvars[0].v_type != VAR_STRING
 	    || (argvars[1].v_type) != VAR_NUMBER)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
     {
 	name = tv_get_string(&argvars[0]);
@@ -1072,7 +1072,7 @@
 	    }
 	}
 	else
-	    semsg(_(e_invarg2), name);
+	    semsg(_(e_invalid_argument_str), name);
     }
 }
 
@@ -1171,7 +1171,7 @@
 	return;
 
     if (argvars[0].v_type != VAR_STRING)
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
     else
 	ignore_error_for_testing(tv_get_string(&argvars[0]));
 }
@@ -1264,7 +1264,7 @@
 	    || (argvars[1].v_type) != VAR_NUMBER
 	    || (argvars[2].v_type) != VAR_NUMBER)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
     which = tv_get_string(&argvars[0]);
@@ -1279,7 +1279,7 @@
 	sb = &gui.bottom_sbar;
     if (sb == NULL)
     {
-	semsg(_(e_invarg2), which);
+	semsg(_(e_invalid_argument_str), which);
 	return;
     }
     gui_drag_scrollbar(sb, value, dragging);
@@ -1300,7 +1300,7 @@
 
     if (argvars[0].v_type != VAR_NUMBER || (argvars[1].v_type) != VAR_NUMBER)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
diff --git a/src/textprop.c b/src/textprop.c
index b3dac1f..3159920 100644
--- a/src/textprop.c
+++ b/src/textprop.c
@@ -362,7 +362,7 @@
 	if (error || start_lnum <= 0 || start_col <= 0
 		|| end_lnum <= 0 || end_col <= 0)
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
 	if (prop_add_one(buf, type_name, id, start_lnum, end_lnum,
@@ -405,7 +405,7 @@
 	end_lnum = dict_get_number(dict, (char_u *)"end_lnum");
 	if (end_lnum < start_lnum)
 	{
-	    semsg(_(e_invargval), "end_lnum");
+	    semsg(_(e_invalid_value_for_argument_str), "end_lnum");
 	    return;
 	}
     }
@@ -418,7 +418,7 @@
 
 	if (length < 0 || end_lnum > start_lnum)
 	{
-	    semsg(_(e_invargval), "length");
+	    semsg(_(e_invalid_value_for_argument_str), "length");
 	    return;
 	}
 	end_col = start_col + length;
@@ -428,7 +428,7 @@
 	end_col = dict_get_number(dict, (char_u *)"end_col");
 	if (end_col <= 0)
 	{
-	    semsg(_(e_invargval), "end_col");
+	    semsg(_(e_invalid_value_for_argument_str), "end_col");
 	    return;
 	}
     }
@@ -750,7 +750,7 @@
 	    dir = -1;
 	else if (*dir_s != 'f')
 	{
-	    emsg(_(e_invarg));
+	    emsg(_(e_invalid_argument));
 	    return;
 	}
     }
@@ -1179,7 +1179,7 @@
 
     if (argvars[0].v_type != VAR_DICT || argvars[0].vval.v_dict == NULL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1316,7 +1316,7 @@
     name = tv_get_string(&argvars[0]);
     if (*name == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1451,7 +1451,7 @@
     name = tv_get_string(&argvars[0]);
     if (*name == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
 
@@ -1492,7 +1492,7 @@
     name = tv_get_string(&argvars[0]);
     if (*name == NUL)
     {
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 	return;
     }
     if (rettv_dict_alloc(rettv) == OK)
diff --git a/src/time.c b/src/time.c
index bb4a202..001f2d8 100644
--- a/src/time.c
+++ b/src/time.c
@@ -190,7 +190,7 @@
 	if (list2proftime(&argvars[0], &res) == FAIL)
 	{
 	    if (in_vim9script())
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 	    return;
 	}
 	profile_end(&res);
@@ -202,7 +202,7 @@
 		|| list2proftime(&argvars[1], &res) == FAIL)
 	{
 	    if (in_vim9script())
-		emsg(_(e_invarg));
+		emsg(_(e_invalid_argument));
 	    return;
 	}
 	profile_sub(&res, &start);
@@ -240,7 +240,7 @@
     if (list2proftime(&argvars[0], &tm) == OK)
 	rettv->vval.v_float = profile_float(&tm);
     else if (in_vim9script())
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 #  endif
 }
 # endif
@@ -264,7 +264,7 @@
     if (list2proftime(&argvars[0], &tm) == OK)
 	rettv->vval.v_string = vim_strsave((char_u *)profile_msg(&tm));
     else if (in_vim9script())
-	emsg(_(e_invarg));
+	emsg(_(e_invalid_argument));
 # endif
 }
 
@@ -842,7 +842,7 @@
 	if (argvars[2].v_type != VAR_DICT
 				   || (dict = argvars[2].vval.v_dict) == NULL)
 	{
-	    semsg(_(e_invarg2), tv_get_string(&argvars[2]));
+	    semsg(_(e_invalid_argument_str), tv_get_string(&argvars[2]));
 	    return;
 	}
 	if (dict_find(dict, (char_u *)"repeat", -1) != NULL)
diff --git a/src/userfunc.c b/src/userfunc.c
index c3b000e..65970e1 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -254,7 +254,7 @@
 	if (mustend && *p != endchar)
 	{
 	    if (!skip)
-		semsg(_(e_invarg2), *argp);
+		semsg(_(e_invalid_argument_str), *argp);
 	    goto err_ret;
 	}
 	if (*p == endchar)
@@ -3692,7 +3692,7 @@
 	if (!aborting())
 	{
 	    if (end != NULL)
-		semsg(_(e_invarg2), start);
+		semsg(_(e_invalid_argument_str), start);
 	}
 	else
 	    *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR);
@@ -4258,7 +4258,7 @@
 					: eval_isnamec(name_base[i])); ++i)
 		;
 	    if (name_base[i] != NUL)
-		emsg_funcname((char *)e_invarg2, arg);
+		emsg_funcname((char *)e_invalid_argument_str, arg);
 
 	    // In Vim9 script a function cannot have the same name as a
 	    // variable.
@@ -4909,7 +4909,7 @@
     if (numbered_function(name) && fudi.fd_dict == NULL)
     {
 	if (!eap->skip)
-	    semsg(_(e_invarg2), eap->arg);
+	    semsg(_(e_invalid_argument_str), eap->arg);
 	vim_free(name);
 	return;
     }
diff --git a/src/version.c b/src/version.c
index aaa7603..945d147 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3961,
+/**/
     3960,
 /**/
     3959,
diff --git a/src/vim9cmds.c b/src/vim9cmds.c
index eb28a79..ad54659 100644
--- a/src/vim9cmds.c
+++ b/src/vim9cmds.c
@@ -1016,7 +1016,7 @@
 
     if (scope == NULL || scope->se_type != FOR_SCOPE)
     {
-	emsg(_(e_for));
+	emsg(_(e_endfor_without_for));
 	return NULL;
     }
     forscope = &scope->se_u.se_for;
@@ -1109,7 +1109,7 @@
 	return NULL;
     if (scope == NULL || scope->se_type != WHILE_SCOPE)
     {
-	emsg(_(e_while));
+	emsg(_(e_endwhile_without_while));
 	return NULL;
     }
     cctx->ctx_scope = scope->se_outer;
@@ -1328,7 +1328,7 @@
     // Error if not in a :try scope
     if (scope == NULL || scope->se_type != TRY_SCOPE)
     {
-	emsg(_(e_catch));
+	emsg(_(e_catch_without_try));
 	return NULL;
     }
 
@@ -1447,7 +1447,7 @@
     // Error if not in a :try scope
     if (scope == NULL || scope->se_type != TRY_SCOPE)
     {
-	emsg(_(e_finally));
+	emsg(_(e_finally_without_try));
 	return NULL;
     }
 
@@ -1457,7 +1457,7 @@
 	isn = ((isn_T *)instr->ga_data) + scope->se_u.se_try.ts_try_label;
 	if (isn->isn_arg.tryref.try_ref->try_finally != 0)
 	{
-	    emsg(_(e_finally_dup));
+	    emsg(_(e_multiple_finally));
 	    return NULL;
 	}
 
@@ -1518,7 +1518,7 @@
     if (scope == NULL || scope->se_type != TRY_SCOPE)
     {
 	if (scope == NULL)
-	    emsg(_(e_no_endtry));
+	    emsg(_(e_endtry_without_try));
 	else if (scope->se_type == WHILE_SCOPE)
 	    emsg(_(e_missing_endwhile));
 	else if (scope->se_type == FOR_SCOPE)
diff --git a/src/vim9execute.c b/src/vim9execute.c
index fd53630..b92f5b9 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -6022,7 +6022,7 @@
 		      TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD, NULL, NULL, NULL);
     if (fname == NULL)
     {
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
 	return;
     }
 
diff --git a/src/vim9script.c b/src/vim9script.c
index 72c7088..ad0830f 100644
--- a/src/vim9script.c
+++ b/src/vim9script.c
@@ -83,7 +83,7 @@
     }
     if (!IS_WHITE_OR_NUL(*eap->arg) && STRCMP(eap->arg, "noclear") != 0)
     {
-	semsg(_(e_invarg2), eap->arg);
+	semsg(_(e_invalid_argument_str), eap->arg);
 	return;
     }
     if (si->sn_state == SN_STATE_RELOAD && IS_WHITE_OR_NUL(*eap->arg))
@@ -771,7 +771,7 @@
     // Check for valid starting character.
     if (!eval_isnamec1(*arg))
     {
-	semsg(_(e_invarg2), arg);
+	semsg(_(e_invalid_argument_str), arg);
 	return arg + STRLEN(arg);
     }
 
diff --git a/src/window.c b/src/window.c
index ca35e5b..51055b4 100644
--- a/src/window.c
+++ b/src/window.c
@@ -6990,7 +6990,7 @@
 	    col = (*s == '-') ? -1 : 1;
 	    ++s;
 	    if (!VIM_ISDIGIT(*s))
-		return e_invarg;
+		return e_invalid_argument;
 	    col = col * getdigits(&s);
 	    if (wp->w_buffer->b_p_tw == 0)
 		goto skip;  // 'textwidth' not set, skip this item
@@ -7001,15 +7001,15 @@
 	else if (VIM_ISDIGIT(*s))
 	    col = getdigits(&s);
 	else
-	    return e_invarg;
+	    return e_invalid_argument;
 	color_cols[count++] = col - 1;  // 1-based to 0-based
 skip:
 	if (*s == NUL)
 	    break;
 	if (*s != ',')
-	    return e_invarg;
+	    return e_invalid_argument;
 	if (*++s == NUL)
-	    return e_invarg;  // illegal trailing comma as in "set cc=80,"
+	    return e_invalid_argument;  // illegal trailing comma as in "set cc=80,"
     }
 
     vim_free(wp->w_p_cc_cols);