virile Look up virile at Dictionary.com
late 15c., from O.Fr. viril, from L. virilis "of a man, manly," from vir "a man, a hero," from PIE *uiHro "freeman" (cf. Skt. virah, Avestan vira-, Lith. vyras, O.Ir. fer, Welsh gwr, Goth. wair, O.E. wer "man"). Virile member for "penis" is recorded from 1540s.