Where does “legautentikusabb” come from?

legautentikusabb (Hungarian) comes from Hungarian autentikusabb, from Hungarian autentikus, from Latin authenticus, from Ancient Greek αὐθεντικός, from Ancient Greek αὐθέντης, from Ancient Greek αὐτο-, from Ancient Greek αὐτός, from Proto-Indo-European h₂ew — Postpositional intensifying particle: indeed, at any rate, in fact.

Ancestry of “legautentikusabb”, step by step

Step	Language	Word	Meaning
1	Hungarian	autentikusabb	—
2	Hungarian	autentikus	authentic
3	Latin	authenticus	original, genuine, authentic
4	Ancient Greek	αὐθεντικός	warranted, authentic, authoritative
5	Ancient Greek	αὐθέντης	a perpetrator of any act, especially that he...
6	Ancient Greek	αὐτο-	self-
7	Ancient Greek	αὐτός	αὐτή f, αὐτό n; "first/second declension";...
8	Proto-Indo-European	h₂ew	away from, off; again
9	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 →