Where does “Ienissei” come from?

Ienissei (Portuguese) comes from Russian Енисе́й, from Evenki Ионэсси — big water.

Ancestry of “Ienissei”, step by step

StepLanguageWordMeaning
1RussianЕнисе́й—
2EvenkiИонэссиbig water
Every word from Evenki Ионэсси →Every word from Russian Енисе́й →