MÖRÐR
nafnorðkarlkyn
m., gen. marðar, dat. merði, [Engl. marten; Germ. marder; Dan. maard]:—a marten; in Edda (Gl.) mörðr is wrongly put among the names of rams, for the marten is not known in Icel.
II. a pr. name, Landn., Nj.; from that Saga originated in popular usage, by way of metonomy, mörðr = a backslider (as a ‘Judas’). marðar-skinn, n. a marten’s skin; see marðskinn.