Lewis Short
cĕleusma | cĕleuma, ae | cĕleusma (noun N.f) = κέλευσμα κ̔έλευμα: (also ), , n. (, , f., Ven. Vita S. Mart. 4, 423), = )
* 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.
Charlton T. Lewis, Charles Short, A Latin Dictionary