Where did the word gringo come from?

The most accepted explanation is that gringo came from griego, a Word that meant Greek. Another likely explanation is that it is a variation of "peregrine," which means stranger.

The most known legend about the history of the Word gringo says it was coined as the result of a misunderstanding and mispronunciation of song lyrics. Supposedly, during the Mexican-American War, the American soldiers sang "Green Grows the Lilies," and the song was heard wrong. However, the Word existed in Spain long before this.