גָּרָה
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 (Strong)
a primitive root; properly, to grate, i.e. (figuratively) to anger: contend, meddle, stir up, strive.