κάσσ-ῡμα · kass-yma — LSJ
anything stitched of leather, esp. sole of a shoe or sandal, Hp. Epid. 5.45, Ar. Ach. 301 (ubi v. Sch.), Eq. 315, 869, Crates Com. 29.4; of cork soles, Dsc. Eup. 2.30; ὑποδήσασθαι ἐχθρῶν παρʼ ἀνδρῶν καττύματα to put on shoes made by an enemy, Ar. V. 1160.
metaph., in pl., patchings, botchings, of bad music, Plu. Mus. 2.1138b.