Source : Webster's Revised Unabridged Dictionary (1913)

Versify \Ver"si*fy\, v. i. [imp. & p. p. {Versified}; p. pr. &
   vb. n. {Versifying}.] [OE. versifien, F. versifier, L.
   versificare; versus a verse + -ficare to make. See {Verse},
   and {-fy}.]
   To make verses.

         I'll versify in spite, and do my best.   --Dryden.