Ὅμηρον ἐξ Ὁμήρου σαφηνίζειν → explain Homer from Homer, explain Homer with Homer
rătĭhăbĭtĭo: ōnis, f. ratum-habeo,I an approval, ratification (jurid.), Dig. 3, 5, 6, § 6; 50, 17, 152 al.
