Where does “Mexiko” come from?

Mexiko (Basque) comes from Spanish México, from Classical Nahuatl Mēxihco — Mexico.

Ancestry of “Mexiko”, step by step

StepLanguageWordMeaning
1SpanishMéxicoMexico
2Classical NahuatlMēxihcoMexico
Every word from Classical Nahuatl MēxihcoEvery word from Spanish México