Etymology

San Diego

Today it means: A city, the county seat of San Diego County, California, United States. Full definition →

Spanish San Diego
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The story

  1. Spanish · borrowed fromSan Diego
  2. English todaySan Diego

Borrowed from Spanish San Diego (literally “Saint Didacus”). Diego is a unique name not derived from Santiago (“Saint James”).

Etymology from Wiktionary, CC BY-SA 4.0.