GNU Groff 1.21 is available for OS/2 and eComStation (2012-06-18)
"GNU Groff port, unix man page formatter.
"
Link: http://hobbes.nmsu.edu/h-search.php?key= groff-1.21_os2.zip
URL: http://www.gnu.org/software/groff/
It requires kLIBC / GCC Runtime Library.
By Mentore Siesto