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
νευροκοπῶ, -έω (Α)
1. κόβω τα νεύρα
2. κόβω τη χορδή τόξου.
[ΕΤΥΜΟΛ. < νεῦρον + -κοπῶ (< -κόπος < κόπτω), πρβλ. δενδρο-κόπος, ξυλο-κόπος.