Ἰώ

A. Ἰοῦν Hdt. 1.1; voc. Ἰοῖ A. Pr. 635, etc.:—Io, daughter of Inachus.
II. name of the moon at Argos, Eust.ad D.P. 92.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project