διακαθαίρειν
From LSJ
Ὅστις γὰρ ἐν πολλοῖσιν ὡς ἐγὼ κακοῖς ζῇ, πῶς ὅδ᾽ Οὐχὶ κατθανὼν κέρδος φέρει; → For one who lives amidst such evils as I do, how could it not be best to die?
Greek > English (Woodhouse Verbs Reversed)
(see also: διακαθαίρω) cleanse from guilt