diff --git a/man/curs_addchstr.3x b/man/curs_addchstr.3x
index 08536e3..25d322a 100644
--- a/man/curs_addchstr.3x
+++ b/man/curs_addchstr.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
-.\" Copyright (c) 1998-2010,2012 Free Software Foundation, Inc.              *
+.\" Copyright 2019-2023,2024 Thomas E. Dickey                                *
+.\" Copyright 1998-2012,2017 Free Software Foundation, Inc.                  *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *
@@ -26,57 +27,61 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_addchstr.3x,v 1.16 2012/11/03 22:54:43 tom Exp $
-.TH curs_addchstr 3X ""
+.\" $Id: curs_addchstr.3x,v 1.45 2024/04/20 21:20:07 tom Exp $
+.TH curs_addchstr 3X 2024-04-20 "ncurses @NCURSES_MAJOR@.@NCURSES_MINOR@" "Library calls"
+.ie \n(.g \{\
+.ds `` \(lq
+.ds '' \(rq
+.\}
+.el \{\
+.ie t .ds `` ``
+.el   .ds `` ""
+.ie t .ds '' ''
+.el   .ds '' ""
+.\}
+.
 .de bP
-.IP \(bu 4
+.ie n  .IP \(bu 4
+.el    .IP \(bu 2
 ..
-.na
-.hy 0
 .SH NAME
-\fBaddchstr\fR,
-\fBaddchnstr\fR,
-\fBwaddchstr\fR,
-\fBwaddchnstr\fR,
-\fBmvaddchstr\fR,
-\fBmvaddchnstr\fR,
-\fBmvwaddchstr\fR,
-\fBmvwaddchnstr\fR \- add a string of characters (and attributes) to a \fBcurses\fR window
-.ad
-.hy
+\fB\%addchstr\fP,
+\fB\%addchnstr\fP,
+\fB\%waddchstr\fP,
+\fB\%waddchnstr\fP,
+\fB\%mvaddchstr\fP,
+\fB\%mvaddchnstr\fP,
+\fB\%mvwaddchstr\fP,
+\fB\%mvwaddchnstr\fP \-
+add a \fIcurses\fR character string to a window
 .SH SYNOPSIS
 .nf
-\fB#include <curses.h>\fR
+\fB#include <curses.h>
 .PP
-\fBint addchstr(const chtype *chstr);\fR
-.br
-\fBint addchnstr(const chtype *chstr, int n);\fR
-.br
-\fBint waddchstr(WINDOW *win, const chtype *chstr);\fR
-.br
-\fBint waddchnstr(WINDOW *win, const chtype *chstr, int n);\fR
-.br
-\fBint mvaddchstr(int y, int x, const chtype *chstr);\fR
-.br
-\fBint mvaddchnstr(int y, int x, const chtype *chstr, int n);\fR
-.br
-\fBint mvwaddchstr(WINDOW *win, int y, int x, const chtype *chstr);\fR
-.br
-\fBint mvwaddchnstr(WINDOW *win, int y, int x, const chtype *chstr, int n);\fR
+\fBint addchstr(const chtype *\fIchstr\fP);
+\fBint waddchstr(WINDOW *\fIwin\fP, const chtype *\fIchstr\fP);
+\fBint mvaddchstr(int \fIy\fP, int \fIx\fP, const chtype *\fIchstr\fP);
+\fBint mvwaddchstr(WINDOW *\fIwin\fP, int \fIy\fP, int \fIx\fP, const chtype *\fIchstr\fP);
+.PP
+\fBint addchnstr(const chtype *\fIchstr\fP, int \fIn\fP);
+\fBint waddchnstr(WINDOW *\fIwin\fP, const chtype *\fIchstr\fP, int \fIn\fP);
+\fBint mvaddchnstr(int \fIy\fP, int \fIx\fP, const chtype *\fIchstr\fP, int \fIn\fP);
+\fBint mvwaddchnstr(WINDOW *\fIwin\fP, int \fIy\fP, int \fIx\fP, const chtype *\fIchstr\fP, int \fIn\fP);
 .fi
 .SH DESCRIPTION
 These functions copy the (null-terminated)
-\fIchstr\fR array
+\fIchstr\fP array
 into the window image structure
 starting at the current cursor position.
-The four functions with \fIn\fR as the last
-argument copy at most \fIn\fR elements,
+.PP
+The four functions with \fIn\fP as the last
+argument copy at most \fIn\fP elements,
 but no more than will fit on the line.
-If \fBn\fR=\fB\-1\fR then the whole array is copied,
+If \fBn\fP=\fB\-1\fP then the whole array is copied,
 to the maximum number of characters that will fit on the line.
 .PP
-The window cursor is \fInot\fR advanced.
-These functions work faster than \fBwaddnstr\fR.
+The window cursor is \fInot\fP advanced.
+These functions are faster than \fBwaddnstr\fP.
 On the other hand:
 .bP
 they do not perform checking
@@ -89,23 +94,30 @@
 they truncate the string if it crosses the right margin,
 rather than wrapping it around to the new line.
 .SH RETURN VALUE
-All functions return the integer \fBERR\fR upon failure and \fBOK\fR on success.
+All functions return the integer \fBERR\fP upon failure and \fBOK\fP on success.
 .PP
-X/Open does not define any error conditions.
+X/Open Curses does not specify any error conditions.
 This implementation returns an error
-if the window pointer is null.
+.bP
+if the \fIwin\fP parameter is null or
+.bP
+if the \fIwchstr\fP parameter is null.
 .PP
-Functions with a "mv" prefix first perform a cursor movement using
-\fBwmove\fP, and return an error if the position is outside the window,
-or if the window pointer is null.
+Functions prefixed with \*(``mv\*('' first perform cursor movement and
+fail if the position
+.RI ( y ,
+.IR x )
+is outside the window boundaries.
 .SH NOTES
-All functions except \fBwaddchnstr\fR may be macros.
+All functions except \fBwaddchnstr\fP may be macros.
 .SH PORTABILITY
-These entry points are described in the XSI Curses standard, Issue 4.
+These functions are described in X/Open Curses, Issue 4.
 .SH SEE ALSO
-\fBcurs_addstr\fR(3X),
-\fBcurses\fR(3X).
+\fB\%curs_add_wchstr\fP(3X) describes comparable functions of the
+.I \%ncurses
+library in its wide-character configuration
+.RI ( \%ncursesw ).
 .PP
-Comparable functions in the wide-character (ncursesw) library are
-described in
-\fBcurs_add_wchstr\fR(3X).
+\fB\%curses\fP(3X),
+\fB\%curs_addch\fP(3X),
+\fB\%curs_addstr\fP(3X)