קַסְדָּא, (cassis, -idis) casque, helmet. Sabb. VI, 2 (expl. ib. 62ᵃ סַנְוַורְתָּא). Kel. XI, 8 (Ar. ed. Koh. קַסִּידָא). Tosef. Kel. B. Mets. III, 1. Ex. R. s. 15 כדי ללבוש ק׳ ושריון וכ׳ strong enough to wear helmet, mail and (carry) arms.—Pl. קַסִּידִין. Y’lamd. to Gen. III, 22, quot. in Ar. (ref. to כרבלתהון) אלו הק׳ that means the helmets.