Where does “autòcton” come from?

autòcton (Catalan) comes from Ancient Greek αὐτόχθων, from Ancient Greek αὐτο-, from Ancient Greek αὐτός, from Proto-Indo-European h₂ew, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

autòcton (Catalan): autochthonous, indigenous

Definitions

autochthonous, indigenous

Ancestry of “autòcton”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	αὐτόχθων	indigenous
2	Ancient Greek	αὐτο-	self-
3	Ancient Greek	αὐτός	αὐτή f, αὐτό n; "first/second declension";...
4	Proto-Indo-European	h₂ew	away from, off; again
5	Proto-Indo-European	ǵʰe	Postpositional intensifying particle: indeed, at any rate, in fact

Every word from Proto-Indo-European ǵʰe →Every word from Proto-Indo-European h₂ew →Every word from Ancient Greek αὐτός →