Arawá language
Arawá or Aruá was a language of Brazil. Its last speaker died in 1877, before any significant documentation of the language could be completed. The only surviving documentation of the language is an 1869 word list.
The language did, however, give its name to the language family that it was a part of, which is now called the Arawan languages. This family covers the extant languages Kulina, Deni, Jamamadi, Paumari, and Suruwahá, all found in Western Brazil and Peru.