have one's face whitened

From LSJ

ῥᾷον ὀμνύναι κἀπιορκεῖν ἢ ὁτιοῦν → they thought less of swearing and perjuring themselves than of anything else in the world

Source

English > Greek (Woodhouse Extra)

τὸ πρόσωπον ἐψιμυθιῶσθαι