Apiaka-Tocantins
Apiaka-Tocantins was a Cariban language once spoken in Brazil.
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Apiaká of Tocantins, also known as Apingi, is an extinct and poorly attested Cariban language, most closely related to the extinct Yarumá language. Kaufman (2007) placed it in his Arara branch. It was said to be moribund in 1964, with only a few speakers.
From Wikipedia · Apiaká of Tocantins · CC BY-SA 4.0