The Collaborative International Dictionary
Spermatize
Spermatize \Sper"ma*tize\, v. i. [Gr. ???. See Sperm.]
To yield seed; to emit seed, or sperm. [Obs.]
--Sir T.
Browne.
Wiktionary
spermatize
vb. (context obsolete English) To yield seed; to emit seed or sperm.