ἀντίχειρος

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

Source

Spanish (DGE)

-ου, ὁ pulgarἀντίχειρος δάκτυλος Antyll. en Orib.7.9.8
como medida pulgada Hero Geom.192.7.