Where does “ακροβάτης” come from?

ακροβάτης (Greek) comes from Koine Greek ἀκροβάτης, from Ancient Greek βαίνω, from Proto-Hellenic gʷəňňō, from Proto-Indo-European gʷm̥yéti, from Proto-Indo-European -yéti, from Proto-Indo-European yé-, from Chichewa iye — he, she.

ακροβάτης (Greek): acrobat; tightrope walker, aerialist; genus...