ὑπόκωφος
From LSJ
Μεγάλοι δὲ λόγοι μεγάλας πληγὰς τῶν ὑπεραύχων ἀποτίσαντες γήρᾳ τὸ φρονεῖν ἐδίδαξαν → The great words of the arrogant pay the penalty by suffering great blows, and teach one to reason in old age
English (LSJ)
ον,
A somewhat deaf, rather deaf, Hp.Coac.172, Ar.Eq. 43, Pl.Prt.334d, R.488b. II absurd, foolish, σφόδρα ὑπόκωφον προσπίπτειν ἔοικε (sc. the reading συναγείρεται in Il.15.680) Philem. Lex. ap. Porph.ad Il.p.287 S., cf. Phld.Rh.1.330 S.
German (Pape)
[Seite 1222] etwas stumpf, bes. taub; Ar. Equ. 43; Plat. Prot. 334 d; Arist. rhet. 3, 4.
Greek (Liddell-Scott)
ὑπόκωφος: -ον, ὀλίγον τι κωφός, ἐπιεικῶς κωφός, Ἀριστοφ. Ἱππ. 43, Πλάτ. Πρωτ. 334D, Πολ. 488Β. ΙΙ. ἡμίφωνος, Πορφυρ. Ὁμ. Ἐρωτ. 8.