LSJ
ῶνος, ὁ, a kind of felt shoe, Poll. 10.50; Dim. οὐδώνιον Edict.Diocl. in IG 5(1).1406.24 (Asine); — also οὐδωνάριον, Charis. 1.552 K., Gloss.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ῶνος, ὁ, das lat. udo, eine Art Filz- oder Pelzschuh, Poll. 10.50.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)