Pro-gĕn'i-tor, n.

noun

n. [Lat., from progignere, progenitum, to bring forth, to beget, from pro, forth, and gignere, to beget; It. progenitore, Sp. progenitor, O. Fr. progeniteur.] An ancestor in the direct line; a forefather. “And reverence thee their great progenitor.” Milton.