cleansing
From LSJ
English > Greek (Woodhouse)
substantive
purification: P. and V. καθαρμός, ὁ, λύσις, ἡ, P. κάθαρσις, ἡ; see purification.
a recompense for his cleansing of land and sea: V. ποντίων καθαρμάτων χέρσου τ' ἀμοιβαί (Euripides, Hercules Furens 225).