a biologically related ancestor: a progenitor of the species.
2.
a person or thing that first indicates a direction, originates something, or serves as a model; predecessor; precursor: the progenitor of modern painting.
Origin: 1350–1400;Middle English < Latinprōgenitor the founder of a family. See pro-1, genitor
1382, from Anglo-Fr. progenitour (1347), O.Fr. progeniteur, from L. progenitorem (nom. progenitor) "ancestor," agent noun from progenitus, pp. of progignere (see progeny).