Mapudungun
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Mapudungun is an isolate language spoken by Mapuche ethnic groups, in Chile and Argentina. Its speakers number 440,000, with 400,000 in the Central Valley of Chile and 40,000 in the Argentinian region of Patagonia. Some 200,000 people use the language regularly. "Poncho" is a word adopted by Spanish language and then in many language so used. Other ethnic groups adopted Mapudungun, e. g. Patagonians or Tehuelche, after the arrival of Hispaniard. This process is named araucanization.
