Where does “Diāna” come from?

Diāna (Latin) comes from Old Latin Divana, from Latin dīva, from Old Latin deiva, from Proto-Italic deiwā, from Proto-Italic deiwos, from Proto-Indo-European deywós, from Proto-Indo-European dyew- — to be bright; sky, heaven.

Diāna (Latin): Diana, the daughter of Latona and Jupiter, and twin sister of Apollo; the goddess of the hunt, associated with wild animals and the forest or wilderness, and an emblem of chastity; the Roman counterpart of Greek goddess Artemis