Usage: 3 forms in 4 verses
Form Translated As     In Verse(s)
γηγενών earthborn LXX.Prov.2.18
γηγενείσ earth-born LXX.Ps.49.2
earth-born men LXX.Prov.9.18
γηγένεσι earth-born LXX.Jer.32.20

Liddell-Scott-Jones

γηγενής (gēgenēs) earth-born G:A

γηγενής-ής, ές,

Doric dialect γᾱγενής Hdn.Gr. 2.419:— earthborn, βολβός [Refs 4th c.BC+]; of a potter's vessel, [Refs 4th c.BC+]; indigenous, βούβαλις [Refs 5th c.BC+]

__2 earthborn, of primeval men, Ἐρεχθεύς [γηγενήςεῖς καὶ μὴ ἐξ ἀλλήλων γεννᾶσθαι 5th-6th c.BC: Plato Philosophus “Politicus” 269b, compare 4th c.BC: Aristoteles Philosophus “de Generatione Animalium” 762b29 ">Refs 5th c.BC+]; of the Thebans, [LXX]; of body, opposed to soul, [Refs 5th c.BC+]
__3 οἱ γ. the dead, the shades,[LXX]
__II born of Gaia, of Titans and Giants, [Refs 5th c.BC+]; τὴν ἐπὶ τῶν γηγενήςῶν (i.e. ἀναστροφήν), opposed to civilized life, [Refs 5th c.BC+]; (but also boorish, βῶλος, ἄροτρον, γ. ἄνθρωπος [Refs 2nd c.AD+]; of things, [Refs], i.e. portentous, γηγενήςεῖ φυσήματι [Refs 5th c.BC+] most earthy, i. e. limited in intelligence, [Refs 5th c.BC+]

LSJ Scripture Refs: LXX.Prov.2.18