"Yucatan" means "I don't understand you" in the ancient native languages of Mexico. The Natives said that when the Spaniards asked what the place is called.
I've been told there's also an Alaskan town called "Nome" (derived from "ki-no-me", meaning "I don't know"). Seeing as I just recently found out the story of "kangaroo" being an Australian aboriginal phrase for "I don't understand" is NOT true though, I don't know what to believe (apparently "ganguru" was one of their pre-colonial names).
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