Athabaskan people and language, 1780, from Spanish Apaches de Nabaju (1629), from Tewa (Tanoan) Navahu, said to mean literally "large field" or "large planted field," containing nava "field" and hu "valley." Spanish Navajo was used 17c. in reference to the area now in northwestern New Mexico.[Navajo etymology, Navajo origin, 英语词源]