WordWeight : Weighing the Words

Pronunciation : Wiv"er, Wiv"ern
Part of Speech : n.
Etymology : [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.]
Definition : 1. (Her.)

Defn: 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?l.)

Defn: The weever.
Source : Webster's Unabridged Dictionary, 1913