ἀλλ' οὐκ οἰωνοῖσιν ἐρύσσατο κῆρα μέλαιναν → by no augury could he ward off black death
a primitive root; to clarify (i.e. brighten), examine, select: make bright, choice, chosen, cleanse (be clean), clearly, polished, (shew self) pure(-ify), purge (out).
