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Rikbaktsa language

Native toBrazil
RegionMato Grosso
Ethnicity1,140 Rikbaktsa people (2006)[1]
Native speakers
40 (2010)[1]
  • Rikbaktsá
Language codes
ISO 639-3rkb
Rikbaktsa language.png

The Rikbaktsa language, also spelled Aripaktsa, Erikbatsa, Erikpatsa and known ambiguously as Canoeiro, is a language spoken by the Rikbaktsa people of the Mato Grosso, Brazil, that forms its own branch of the Macro-Gê languages.

As in other languages of the area, word endings indicate the gender of the speaker.[3] Rikbaktsa is a subject-object-verb language.[1]

Most Rikbaktsa can speak both Rikbaktsa and Portuguese. Younger individuals tend to speak Portuguese more frequently and fluently than their elders, but older individuals generally struggle with Portuguese and use it only with non-indigenous Brazilians.[3]


Front Central Back
Close i ɨ u
Close-mid e o
Mid ə
Open a

All vowels have nasalized forms.[4]

Bilabial Alveolar Palato-alveolar Retroflex Palatal Velar Glottal
Stop voiceless p t k
voiced b d
Affricate t͡ʃ
Fricative ʃ h
Nasal m n
Approximant j w
Flap ɾ ɽ


  1. ^ a b c Rikbaktsá at Ethnologue (18th ed., 2015)
  2. ^ Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Rikbaktsa". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
  3. ^ a b Arruda, Rinaldo S.V. "Rikbaktsa: Language." In Encyclopedia of Indigenous Peoples in Brazil. Instituto Socioambiental (November 1998).
  4. ^ "SAPhon – South American Phonological Inventories". Retrieved 2018-08-12.