Where does “รีโอเดจาเนโร” come from?

รีโอเดจาเนโร (Thai) comes from Portuguese Rio de Janeiro — River of January.

Ancestry of “รีโอเดจาเนโร”, step by step

StepLanguageWordMeaning
1PortugueseRio de JaneiroRiver of January
Every word from Portuguese Rio de Janeiro