From Tolkien Gateway
|This article describes a concept which is mentioned in J.R.R. Tolkien's works, but was never given a definite name.|
The Warg language was the tongue of the Wargs over the Edge of the Wild.
Not much is known about this language. When Thorin and Company were found by the Wargs at their meeting-place, Gandalf understood was able to understand their language. According to Bilbo Baggins, the tongue "sounded terrible".