Wiv"er (?), Wiv"ern (?), n. [OE. wivere a serpent, OF. wivre, guivre, F. givre, guivre, wiver, from L. vipera; probably influenced by OHG. wipera, from the Latin. See Viper, and cf. Weever.]
A fabulous two-legged, winged creature, like a cockatrice, but having the head of a dragon, and without spurs.
[Written also wyvern
The jargon of heraldry, its griffins, its mold warps, its wiverns, and its dragons.
Sir W. Scott.
© Webster 1913.