The ms macro package has a flexible footnote system. You can specify either numbered footnotes or symbolic footnotes (that is, using a marker such as a dagger symbol).
You can control how
groff prints footnote numbers by changing the
value of the
FF register. See ms Document Control Registers.
Footnotes can be safely used within keeps and displays, but you should
avoid using numbered footnotes within floating keeps. You can set a
\** marker between a
\** and its corresponding
.FS entry; as long as each
FS macro occurs after
\** and the occurrences of
.FS are in
the same order as the corresponding occurrences of