ἀρρήμων
From LSJ
οἵ γε καὶ ἐν τῷ παρόντι ἀντιπάλως μᾶλλον ἢ ὑποδεεστέρως τῷ ναυτικῷ ἀνθώρμουν → whose navy, even as it was, faced the Athenian more as an equal than as an inferior
English (LSJ)
ον, gen. ονος, A without speech, silent, Poll.2.128.
Greek (Liddell-Scott)
ἀρρήμων: -ον, ἐπὶ ῥήτορος, ὁ σιωπῶν, ὁ μὴ λαλῶν, ὁ σιγηλός, Πολυδ. Β΄, 128.
Spanish (DGE)
-ον mudo Poll.2.128.