their name means “the Snatchers”. The word thuella or aella, “the tearing wind”, has almost the same meaning. If any man disappeared at sea as utterly as Odysseus, people would say: “The Harpies have snatched him away.”
Kerényi establishes the Harpy’s definitive etymological and mythological identity as a figure of violent, wind-like abduction, closely identified with the Erinyes, the Gorgon, and the forces of disappearance and death.
, The Gods of the Greeks, 1951thesis