ἐκρύπτω
From LSJ
ἡ Νέμεσις προλέγει τῷ πήχεϊ τῷ τε χαλινῷ μήτ' ἄμετρόν τι ποιεῖν μήτ' ἀχάλινα λέγειν → Nemesis warns us by her cubit-rule and bridle neither to do anything without measure nor to be unbridled in our speech
English (LSJ)
A wash or rinse out, Poll.1.44,7.39 :—Med., ἐκρύπτεσθαι τὸ ἀδικεῖν Ph.1.613.