Where does “Eumenēs” come from?

Eumenēs (Latin) comes from Ancient Greek Εὐμένης, 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.

Eumenēs (Latin): One of the most distinguished generals of Alexander the Great