αινόφρων
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
Greek Monolingual
αἰνόφρων (-ονος), -ον (Α)
προσηνής, ευπροσήγορος, αγανόφρων.
[ΕΤΥΜΟΛ. < αἰνὸς + -φρων < φρὴν].