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In the philologist and fantasy author J. R. R. Tolkien's Middle-earth fiction, a warg is a particularly large and evil kind of wolf that could be ridden by orcs. He derived the name and characteristics of his wargs by combining meanings and myths from Old Norse and Old English. In Norse mythology, a vargr (anglicised as warg) is a wolf, especially the wolf Fenrir that destroyed the god Odin in the battle of Ragnarök, and the wolves Sköll and Hati, Fenrir's children, who perpetually chase the Sun and Moon. In Old English, a wearh is an outcast who may be strangled to death.
Through Tolkien's influence, wargs have featured in fantasy books by authors including George R. R. Martin, and in media such as video games and role-playing games.
Etymology and origins
thumb|upright|The [[jötunn Hyrrokin riding a wolf, on an image stone from the Hunnestad Monument, constructed in 985–1035 AD|left]]
The Tolkien scholar Tom Shippey states that Tolkien's spelling "warg" is a cross of Old Norse vargr and Old English wearh. He notes that the words embody a shift in meaning from "wolf" to "outlaw": vargr carries both meanings, while wearh means "outcast" or "outlaw", but has lost the sense of "wolf". In Old Norse, vargr is derived from the Proto-Germanic root reconstructed as *wargaz, ultimately derived from the Proto-Indo-European (PIE) root reconstructed as *werg̑ʰ- "destroy". Vargr (compare modern Swedish varg "wolf") arose as a non-taboo name for úlfr, the normal Old Norse term for "wolf". Shippey adds that there is an Old English verb, awyrgan, meaning both "to condemn [an outcast]" and "to strangle [an outcast to death]"; he writes that a possible further sense is "to worry [a sheep], to bite to death". He writes that