ἐπιγνώμων
From LSJ
Έγ', ὦ ταλαίπωρ', αὐτὸς ὧν χρείᾳ πάρει. Τὰ πολλὰ γάρ τοι ῥήματ' ἢ τέρψαντά τι, ἢ δυσχεράναντ', ἢ κατοικτίσαντά πως, παρέσχε φωνὴν τοῖς ἀφωνήτοις τινά –> Wretched brother, tell him what you need. A multitude of words can be pleasurable, burdensome, or they can arouse pity somehow — they give a kind of voice to the voiceless.
English (LSJ)
ονος, ὁ, ἡ,
A arbiter, umpire, judge, c.gen.rei, Pl.Lg.828b, LXX Pr.12.26, CIG(add.) 3641b27 (Lampsacus); αἰτιῶν Plu.Cam.18; ὀσφρήσιος, of the nose, Hp.Ep.23; ἐ. τῆς τιμῆς appraiser, D.37.40: abs., Luc.Deor. Conc.15. 2. in pl., inspectors, Lys.7.25 ap.Harp. (γνώμονας codd.). II. = συγγνώμων, pardoning, τινί Mosch.4.70. III. acquainted with, φύσεως, γυναικῶν, Ph.1.29, 2.274; τέχνης S.E.M.7.56.