Where does “ἀγγεῖον” come from?

ἀγγεῖον (Ancient Greek) comes from Ancient Greek ἄγγος, from Proto-Indo-European h₂éngos, from Proto-Indo-European h₂eng- — curve, bend.

ἀγγεῖον (Ancient Greek): vessel, jar, vase, pail, bucket, box; receptacle,...