Lewis & Short

Ăëllō, ūs, f., = Ἀελλώ.

  1. I. The name of a harpy (from ἄελλα, tempest, because she came like it upon her prey): ales Aëllo, Ov. M. 13, 710.
  2. II. The name of a swiftrunning dog, Ov. M. 3, 219.