Usage: 6 forms in 14 verses
Form Translated As     In Verse(s)
αυτόχθων a native-born LXX.Jer.14.8
native born LXX.Exod.12.48LXX.Lev.16.29LXX.Lev.19.34LXX.Lev.23.42LXX.Lev.24.16LXX.Num.15.13LXX.Josh.8.33
αυτόχθοσιν native born LXX.Lev.17.15
αυτόχθοσι native born LXX.Exod.12.19
αυτόχθονι native born LXX.Num.9.14
αυτόχθονεσ native-born LXX.Lev.20.4LXX.Ezek.47.22
αυτοχθόνων native born LXX.Num.15.30

Liddell-Scott-Jones

αὐτόχθων (autochthōn) native-born G:N-M

αὐτόχθων-χθων, ον,

genitive ονος, sprung from the land itself; αὐτόχθωνχθονες, οἱ, not settlers, of native stock, [Refs 5th c.BC+]: especially of the Athenians, [Refs 5th c.BC+]

__II adjective, indigenous, native, τὰ μὲν δύο αὐτόχθωνχθονα τῶν ἐθνέων[Refs 5th c.BC+]; ἀρετή[Refs 5th c.BC+]; urbanitas, racy of the soil, [Refs 1st c.BC+]