Ὦξος
Could not find Ὤξῳ in Logeion dictionaries.
Ὤξῳ Proper-name noun: masculine dative singular of Ὦξος
Ὦξος — Oxus R. (Asia), Pleiades 59969
Ὦξος, ου (ὁ) l’Ôxus (auj. Amou-Daria) fl. de Sogdiane et de Bactriane, Arstt. Mir. 46 ; Plut. Alex. 57.