- a two-legged winged dragon having the hinder part of a serpent with a barbed tail.
Origin of wyvern
- a less common spelling of wyvern
less commonly wivern
- a heraldic beast having a serpent's tail and a dragon's head and a body with wings and two legs
Word Origin for wyvern
c.1600, formed (with excrescent -n) from Middle English wyver (c.1300), from Anglo-French wivre, from Old North French form of Old French guivre "snake," from Latin vipera "viper" (see viper). In heraldry, a winged dragon with eagle's feet and a serpent's barbed tail.