ἀπόπλυσις
From LSJ
μηδὲν κοτυλίζειν, ἀλλὰ καταπάττειν χύδην → not to sell by the cupful, but to dole out indiscriminately | not to sell by retail but wholesale
English (LSJ)
εως, ἡ,
A washing away, Alex. Aphr. in Sens.94.13.
Greek (Liddell-Scott)
ἀπόπλῠσις: -εως, ἡ, πλύσις, καθαρισμός, Ἀχμ. Ὀνειρ. 231: -πλῠτέον, ῥηματ. ἐπίθ., πρέπει τις ν’ ἀποπλύνῃ, νὰ καθαρίσῃ, Γεωπ. 16. 18, 2.