δοῦπος

A. any dead, heavy sound, thud, δ. ἀκόντων Il. 11.364, 16.361; δ. ὀρώρει πύργων βαλλομένων 9.573, cf. 12.289; of the distant din of battle, 16.635; of the sound of footsteps, 10.354, Od. 16.10; of the measured tread of infantry, Il. 23.234, Hes. Th. 70; ὅμαδον καὶ δ., of a multitude, Od. 10.556; of the roar of the sea dashing against rocks or of a distant torrent, 5.401, Il. 4.455.—Rare in Trag., δ. μαράγνης A. Ch. 376 (lyr.); χερόπλακτοι δ’ ἐν στέρνοισι πεσοῦνται δοῦποι the loud beating of breasts, S. Aj. 634, cf. E. Ba. 513; ἀκούομεν πυλῶν δ. the noise of opening gates, Id. Ion 516. Rare in Prose, Th. 3.22 (v.l. ψόφον); θόρυβος καὶ δ. X. An. 2.2.19.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project