LSJ
οῦ, ὁ, winner in games, CIG 5035 (Nubia, iii AD); conqueror, Eust. 157.1; of the Emperor Julian, SIG 906B (Magn. Mae., iv AD).
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
[ῑ], ὁ, der Sieger, Eust.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)