Ὅμηρον ἐξ Ὁμήρου σαφηνίζειν → explain Homer from Homer, explain Homer with Homer
permănēns, entis, p.-adj. de permaneo, permanent : vox Cic. Br. 141, voix dont le ton se maintient sans défaillance || -tior Boet. Arist. cat. 3, p. 173.