unigenitus

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

ūnĭ-gĕnĭtus, a, um, adj. [unus-gigno],

only-begotten , only (eccl. Lat.; cf. unicus): unigenitus ille vocatur, qui parentibus solus sit, Hier. adv. Helv. 9: filius, Tert. adv Gnost. 7; Aug. Civ. Dei, 11, 24; Vulg. Johan 1, 14.