Lewis Short
(adj.Subst.) : prīmĭgĕnĭus, a, um, adj.primusgeno, gigno.
* First of all, first of its kind, original, primitive (ante- and post-class.): pecuaria,Varr. R. R. 2, 2: semina,id. ib. 1, 40: seminis fontes,Amm. 14, 6, 17: verba,radical words, primitives,Varr. L. L. 6, § 36 Müll.: primigenius sulcus dicitur, qui in condendā novā urbe tauro et vaccā designationis causā imprimitur, Paul. ex Fest. p. 236 Müll.
* Subst.
* Prīmĭgĕnĭa, ōrum, n., the first principle or nature: rerum,Amm. 26, 10, 16.
* Prīmĭgĕ-nĭi, ōrum, m., an epithet of the Phrygians, who claimed to be the first men, App. M. 11, p. 259, 7.
* Prīmĭgĕnĭa, ae, f., an epithet of Fortuna, as the attendant of her favorite from birth, Cic. Leg. 2, 11, 28; Liv. 29, 36, 8; 34, 53, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary