Warg

ISTP - 8w7 - sp/sx - Choleric-Melancholic

In Norse mythology, a vargr (pl. vargar; often anglicised as warg or varg) is a wolf and in particular refers to the wolf Fenrir and the wolves that chase the sun and moon Sköll and Hati. Based on this, J. R. R. Tolkien in his fiction used the Old English form warg (other O.E. forms being wearg and wearh) to refer to a particularly large and evil kind of wolf. Because of Tolkien's influence on fantasy the word has been used many times in other works.