Where does “λαγός” come from?

λαγός (Greek) comes from Ancient Greek Λαγώς, from Ancient Greek λαγοωυσός, from Ancient Greek οὖς, from Ancient Greek ὀδούς, from Proto-Hellenic odónts, from Proto-Indo-European h₃dónts, from Proto-Indo-European h₁ed- — to eat.

λαγός (Greek): hare, male hare; jackrabbit