ἐξ ὀνύχων λέοντα τεκμαίρεσθαι → judge by the claws, judge by a slight but characteristic mark, small traits give the clue to the character of a person, deduce something from a small indication, identify a lion from its claws
διφρίας: -ου, ὁ, «ὁ ἑδραῖος καὶ καθήμενος ἀεί, οἱον ἀργὸς» Ἡσύχ. Κατὰ διόρθωσιν τοῦ Δινδορφ. ἀντὶ δίφρις. Ἴδ. Κόντ. Γλ. Παρ. σ. 342.