GNU Collaborative International Dictionary of English

Found one definition

1.       
   Werewolf , n.; pl. Werewolves . [AS. werwulf; wer a man + wulf a wolf; cf. G. wärwolf, währwolf, wehrwolf, a werewolf, MHG. werwolf. √285. See Were a man, and Wolf, and cf. Virile, World.] A person transformed into a wolf in form and appetite, either temporarily or permanently, whether by supernatural influences, by witchcraft, or voluntarily; a lycanthrope. Belief in werewolves, formerly general, is not now extinct.
   1913 Webster
   The werwolf went about his prey.
   William of Palerne.
   
   1913 Webster
   The brutes that wear our form and face,
   The werewolves of the human race.
   Longfellow.
   
   1913 Webster