haruspicium
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
Latin > English (Lewis & Short)
hăruspĭcĭum: (ar-), ii, n. id.,
I inspection of victims, divination, Cat. 90, 2.
Latin > French (Gaffiot 2016)
hăruspĭcĭum,¹⁵ ĭī, n., science des haruspices : Catul. 90, 2.