ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers
lăbĕfīo:I pass. of labefacio.
lăbĕfīō,¹⁶ ĭĕrī, pass. de labefacio.
labefīo, factus sum, fierī, s. labefacio.