Wargs or Worgs are mythical Norse wolves, specifically Fenrir and his sons Sköll and Hati. Based on this, J. R. R. Tolkien in his fiction used the Old English form warg to refer to a wolf-like creature of a particularly evil kind.
Usage
See Special:Whatlinkshere/Etymology:Warg for a list of articles using this term.
This is an etymology page: a page detailing the origins of terminology used in the series in regards to real world culture and history.