Uirina
Uirina was an Arawakan language once spoken in Brazil.
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Wiriná (Uirina) is an extinct, poorly attested, and unclassified Arawakan language. It is known only from the wordlists of Johann Natterer and Carl Friedrich Philipp von Martius, recorded in the 19th century. Both Kaufman (1994) and Aikhenvald (1999) leave it unclassified within Northern Arawakan.
From Wikipedia · Wiriná language · CC BY-SA 4.0