Shavante or Xavante is spoken by about 10,000 people in eastern parts of the Brazilian state of Mato Grosso between the Rio das Mortes and the Araguaia River. It is a member of the Macro-Gê or Gê family of languages.
Alternative names for this language include Akuên, Akwen, A'uwe Uptabi, A'we, Chavante, Crisca, Pusciti, Shavante, Tapacua.
source
wikipedia.org,
omniglot.com &
ethnologue.com