Where does “εὐωδία” come from?

εὐωδία (Ancient Greek) comes from Ancient Greek εὐώδης, from Ancient Greek εὖ, from Ancient Greek ἐΰς, from Proto-Hellenic ehu-, from Proto-Indo-European h₁su-, from Proto-Indo-European h₁wes- — good; to be cheerful, happy; to eat, to feast.

εὐωδία (Ancient Greek): sweet smell