LSJ
ὁ (cf. κασῆς), thick garment, Hdn. Gr. 1.208, Hsch.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, ἱμάτιον παχὺ καὶ τραχὺ περιβόλαιον, Hesych.; Arcad. 76.16 ; s. κάσας.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)