With the advent of colonization, Tupians used the names of similar native animals to call the unknown species brought by the Europeans. Neologisms were then created by using eté (“true”) and eŷmbaba / mimbaba (“domestic animal”) as a form to differentiate the old and new species, respectively.

Papavero, Nelson; Teixeira, Dante Martins (2014), Zoonímia tupi nos escritos quinhentistas europeus (Arquivos NEHiLP; 3) (in Portuguese), São Paulo: FFLCH-USP, page 252

Jehan Lamy (c. 1540), Le langaige du breſiL, page 54, line 88
André Thevet (1557–1558), Les singularitez de la France Antarctique, Paris: Maurice de La Porte, page 96