Wiver /(?)/

Wiv·er

Wiver

n.
  1. A fabulous two-legged, winged creature, like a cockatrice, but having the head of a dragon, and without spurs. (Her.)
    The jargon of heraldry, its griffins, its mold warps, its wiverns, and its dragons.
  2. The weever. (Zool.)