Find the word definition

The Collaborative International Dictionary
Wiver

Wiver \Wiv"er\, Wivern \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.]

  1. (Her.) 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.

  2. (Zo["o]l.) The weever.

Wiktionary
wiver

n. (context obsolete English) wyvern.