LEIPTR
nafnorðkvenkyn
f., pl. leiptrir, Hkv. 1. 15; gen. sing. leiptrar, 2. 29; but in mod. usage neut.:—lightning, Sks. 203, passim in mod. usage.
2. in poetry; hræ-l., ‘carrion-lightning’ = a sword; or víg-l., ‘war-lightning,’ id.; alnar-l., ‘arm-lightning’ = gold; enni-leiptr, the ‘brow-lightning’ = the eye, see Lex. Poët.; leiptra hrót, the ‘lightning-roof’ = the sky, Harms.: leiptr is the name of a sword, Edda (Gl.)
II. the name of a myth. river, cp. the Gr. Πυριφλεγέθων, Gm.: an oath sworn by this river, Hkv. 2. 29.