diff --git a/contrib/groff/addftinfo/addftinfo.man b/contrib/groff/addftinfo/addftinfo.man
index 6741c171f64..abf33c4eee7 100644
--- a/contrib/groff/addftinfo/addftinfo.man
+++ b/contrib/groff/addftinfo/addftinfo.man
@@ -96,7 +96,6 @@ If a parameter is not specified the default will be used.
 The defaults are chosen to have the reasonable values for
 a Times font.
 .SH "SEE ALSO"
-.BR font (5)
 .BR groff_font (@MAN5EXT@),
 .BR groff (@MAN1EXT@),
 .BR groff_char (@MAN7EXT@)
diff --git a/contrib/groff/grops/grops.man b/contrib/groff/grops/grops.man
index 6ac082f3677..d93aa8e95fb 100644
--- a/contrib/groff/grops/grops.man
+++ b/contrib/groff/grops/grops.man
@@ -629,7 +629,7 @@ The input to
 must be in the format output by
 .BR @g@troff (@MAN1EXT@).
 This is described in
-.BR groff_out (@MAN1EXT@).
+.BR groff_out (@MAN5EXT@).
 In addition the device and font description files for the device used
 must meet certain requirements.
 The device and font description files supplied for
@@ -828,7 +828,7 @@ Macros to undo the effect of
 .BI /tmp/grops XXXXXX
 Temporary file.
 .SH "SEE ALSO"
-.BR afmtodit (@MAN1EXT@),
+.\" .BR afmtodit (@MAN1EXT@),
 .BR groff (@MAN1EXT@),
 .BR @g@troff (@MAN1EXT@),
 .BR psbb (@MAN1EXT@),
diff --git a/contrib/groff/troff/troff.man b/contrib/groff/troff/troff.man
index 46bf011f4ae..30c70270f98 100644
--- a/contrib/groff/troff/troff.man
+++ b/contrib/groff/troff/troff.man
@@ -1381,7 +1381,7 @@ In Unix troff, the
 contents of
 .I filename
 is immediately copied through to the output regardless of whether
-there is a current diversion; this behaviour is so anomalous that it
+there is a current diversion; this behavior is so anomalous that it
 must be considered a bug.
 .TP
 .BI .ev\  xx
@@ -1423,7 +1423,7 @@ if the end of a sentence occurs at the end of a line in fill mode, then
 both an inter-word space and a sentence space will be added;
 if two spaces follow the end of a sentence in the middle of a line,
 then the second space will be a sentence space.
-Note that the behaviour of Unix troff will be exactly
+Note that the behavior of Unix troff will be exactly
 that exhibited by GNU troff if a second argument is never given to the
 .B ss
 request.