οὐκ ἔστι γῆρας τοῦδε τοῦ μιάσματος → that pollution never wears out, that pollution can never grow old
-ονcalculable ἰσχύσαμεν ἐναριθμήτων ὄντων τῶν σημαινομένων πᾶσιν ἐπεξελθεῖν Elias in Cat.249.26.