ἁγνεύειν
From LSJ
Μιμοῦ τὰ σεμνά, μὴ κακῶν μιμοῦ τρόπους → Graves imitatormores, ne imitator malos → Das Edle nimm zum Vorbild, nicht der Schlechten Art
Greek > English (Woodhouse Verbs Reversed)
(see also ἁγνεύω): be chaste, be clean, be pure, be purified, be uncontaminated, be undefiled