κοιλωπής
From LSJ
ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving
German (Pape)
[Seite 1467] ές, = κοιλωπός, Nic. Al. 442 αὐγαί.
Greek (Liddell-Scott)
κοιλωπής: -ές, ἔχων κοίλους ὀφθαλμούς, κοιλωπέες αὐγαὶ Νικ. Ἀλεξιφ. 442· ― θηλ. κοιλῶπις, ιδος, Ἀνθ. Π. 6. 219.