κέλ-ευσμα · kel-eusma — LSJ
order, command, A. Eu. 235, S. Ant. 1219 (pl.), etc.; call, summons, A. Ch. 751 (pl.): in Prose, word of command in battle, Hdt. 4.141, 7.16, cf. E. Hec. 929 (lyr.); ὁ Κύριος ἐν κ. καταβήσεται ἀπʼ οὐρανοῦ 1 Ep.Thess. 4.16; also, the call of the κελευστής (q.v.), which gave the time to the rowers, ἀπὸ ἑνὸς κελεύσματος all at once, Th. 2.92, D.S. 3.15; ἐξ ἑνὸς κελεύματος Sophr. 25; ἐκ κελεύματος at the word of command, A. Pers. 397, cf. E. IT 1405; καχάζετε . . ἀπὸ κ. Eub. 8; στρατεύσονται ἀφʼ ἑνὸ