Lewis & Short

cĕleuma, v. celeusma.

cĕleusma (also cĕleuma), ătis, n. (cĕleusma, ae, f., Ven. Vita S. Mart. 4, 423), = [?KE/LEUSMA (KE/LEUMA ?]), a command or call given by the chief oarsman, which gave the time to the rowers, Mart. 3, 67, 4; Rutil. 1, 370; cf. Ascon. Cic. Div. in Caecil. 17, 55.