Charrúa
Charrúa was a Charruan language once spoken in Uruguay.
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Charrúa is an extinct Charruan language historically spoken by the Charrúa people in southern Uruguay. The language is poorly attested, known from only a few wordlists, and has been extinct since the 19th century, though speakers were reported as late as 1964.
From Wikipedia · Charrúa language · CC BY-SA 4.0