Nevbosh

Nevbosh (New Nonsense) is a language created in the early years of the 1900s by J.R.R. Tolkien and his cousin Mary Incledon (1895-1940).

According to Humphrey Carpenter, Tolkien and Mary "collaborated to invent [this] new and more sophisticated language". However, Tolkien himself told that his role in the construction of Nevbosh was more humble; he merely contributed to the vocabulary and influenced the spelling.