ἀποκοπτέον
From LSJ
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
English (LSJ)
A one must hew off, χεῖρα Ph.1.668, cf. Paul.Aeg.6.74.
Greek (Liddell-Scott)
ἀποκοπτέον: ῥηματ. ἐπίθ. τοῦ ἀποκόπτω, πρέπει τις νὰ ἀποκόψῃ, Φίλων 1. 668.
Spanish (DGE)
hay que cortar χεῖρα Ph.1.668, τοὺς πόδας Paul.Aeg.6.74.