Wayampipukú is a

Tupian language The Tupi or Tupian language family comprises some 70 languages spoken in South America, of which the best known are Tupi proper and Guarani. Homeland and ''urheimat'' Rodrigues (2007) considers the Proto-Tupian urheimat to be somewhere between ...

, more specifically, a Northern Tupi–Guarani language. The language is very closely related to

Wayampi The Wayampi or Wayãpi are an indigenous people located in the south-eastern border area of French Guiana at the confluence of the rivers Camopi and Oyapock, and the basins of the Amapari and Carapanatuba Rivers in the central part of the state ...

References

Tupi–Guarani languages Languages of Brazil {{tupian-lang-stub