ἀφθεγγής
From LSJ
Ἀναβάντα γὰρ εἰς τὴν ἀκρόπολιν, καὶ διὰ τὴν ὑπερβολὴν τῆς λύπης προσκόψαντα τῷ ζῆν, ἑαυτὸν κατακρημνίσαι → For he ascended the acropolis and then, because he was disgusted with life by reason of his excessive grief, cast himself down the height
English (LSJ)
ές, A speechless, AB 473.
Greek (Liddell-Scott)
ἀφθεγγής: -ές, ὁ μὴ φθεγγόμενος, ἄφωνος, Α. Β. 473, 14.
Spanish (DGE)
-ές mudo, AB 473.