Ὅμηρον ἐξ Ὁμήρου σαφηνίζειν → explain Homer from Homer, explain Homer with Homer
P. and V. ἀπόπληκτος, μανιώδης, Ar. and P. παραπλήξ, μανικός, V. ἐμμανής (Plato also but rare P.), Ar. and V. παραπεπληγμένος; see mad.