Where does “托坎廷斯” come from?

托坎廷斯 (Chinese) comes from Portuguese Tocantins, from Old Tupi tukã, from Proto-Tupi-Guarani *tũkãn — toucan.

Ancestry of “托坎廷斯”, step by step

StepLanguageWordMeaning
1PortugueseTocantins—
2Old TupitukãToucan
3Proto-Tupi-Guarani*tũkãntoucan
Every word from Proto-Tupi-Guarani *tũkãn →Every word from Old Tupi tukã →Every word from Portuguese Tocantins →