Where does “Mexifornia” come from?

Mexifornia (English) comes from English Mexico, from Spanish México, from Classical Nahuatl Mēxihco — Mexico.

Ancestry of “Mexifornia”, step by step

Mexifornia traces back through two separate lines of ancestry.

via English Mexico

StepLanguageWordMeaning
1EnglishMexiconow submerged under Lake Tawakoni
2SpanishMéxicoMexico
3Classical NahuatlMēxihcoMexico

via English California

StepLanguageWordMeaning
1EnglishCaliforniaA region on the west coast of North America comprising the US state of California and the Baja California peninsula in Mexico; historically also including other areas in Alta California and Baja California
2SpanishCalifornia
Every word from Classical Nahuatl MēxihcoEvery word from Spanish MéxicoEvery word from English Mexico