ῥύσκευ

From LSJ

ἡ κέρκος τῇ ἀλώπεκι μαρτυρεῖ → you can tell a fox by its tail, small traits give the clue to the character of a person

Source

English (Autenrieth)

see ῥύομαι.

Russian (Dvoretsky)

ῥύσκευ: эп. (= ἐρύου) 2 л. sing. impf. к ῥύομαι.