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
μητρώιος: -α, -ον, Ἐπικ. ἀντὶ τοῦ μητρῷος, Ὀδ. Τ. 410.
of a mother, maternal, δῶμα, Od. 19.410†.
μητρώϊος, -ΐα, -ον (Α)
(ασυναίρ. επικ. και ιων. τ.) βλ. μητρώος.