Lewis Short
(adjective) : prīmōgĕnĭtus, a, um, primusgenitus
* First-born (post-Aug. for maximus natu, etc.), Plin. 11, 40, 95, § 234 (al. primis genitis): vitulus,Pall. 1, 39: primogenita omnia deo offerenda,Sulp. Sev. Chron. 1, 18, 8: filius,Lact. 4, 11, 7; 3, 6, 2.—As subst.: prīmōgĕnĭta, ōrum, n., the right of the first-born, birthright, Vulg. Gen. 25, 33; Aug. Conf. 7, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary