Etymology

Altadena

A1L1T1A1D2E1N1A1

Today it means: A census-designated place in Los Angeles County, California, United States. Full definition →

Spanish alta
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The story

  1. Spanish · borrowed fromalta“high”
  2. English todayAltadena

From Spanish alta (“high”) + dena of Pasadena, itself of Ojibwe origin.

Etymology from Wiktionary, CC BY-SA 4.0.