Lewis & Short

nymphĭgĕna, ae, m. [nympha- gigno], the Nymph-born, i. e. Achilles, the son of Thetis: sors nova nymphigenae votum post fata meretur: Quam pepigit thalamis, hanc habet in tumulis, i. e. Polyxena, who was immolated on his tomb, Poët. ap. Anth. Lat. t. i., p. 84 Burm.