Mato Grosso Arára language
Extinct unclassified language of Brazil
Mato Grosso Arára (also disambiguated as Arara do Beiradão or Arara do Rio Branco, and also known as Koaiá ~ Koayá or Yugapkatã) is an extinct unclassified language of Brazil. The ethnic population that spoke the language numbers 249 as of 2014.
Classification
The language is unclassified, with no known connections to established families. It is attested in a few word lists, which shows it is neither Tupian nor Arawakan. Four people remembered the language in 2001, and two in 2008, but none were fluent speakers.
Jolkesky (2010) notes some lexical similarities with Tupian.
Vocabulary
The following vocabulary list was collected in 2001 by Inês Hargreaves from two Arara groups in the north of the Parque Aripuanã, Rondônia. The informants were João Luis V. Arara, José Rodrigues V. Arara, Maria Aruy Arara, and Ana Anita Arara.
For a more extensive vocabulary list of Arara by Jolkesky (2010), see the corresponding Portuguese article.
References
External links
Lev, Michael; Stark, Tammy; Chang, Will (2012).
This brief starts where responsible research should: with the source description of “Mato Grosso Arára language” as extinct unclassified language of Brazil. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as extinct unclassified language of Brazil. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 29, 2026. The linked authority identifier is Q3446660. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2014, 2001, 2008 and 2010.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Mato Grosso Arára language” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.