|Region||Eel River area (formerly)|
|yuk Yuki proper|
|qdw Coast Yuki|
The Yuki language, also spelled Ukiah and also known as Ukomno'm, was a language of California, spoken by the indigenous American Yuki people, formerly in the Eel River area, the Round Valley Reservation, northern California. It became extinct some time in the 20th century. Yuki is generally thought to be distantly related to the Wappo language.
Yuki consisted of three dialects: Northern Yuki (Round Valley Yuki), Coast Yuki, and Huchnom (Clear Lake Yuki). These were at least partially mutually intelligible, but are sometimes counted as distinct languages.
Yuki had an octal (base-8) counting system, as the Yuki keep count by using the four spaces between their fingers rather than the fingers themselves. Yuki also had an extensive vocabulary for the plants of Mendocino County, California.
- Nordhoff, Sebastian; Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2013). "Yuki". Glottolog 2.2. Leipzig: Max Planck Institute for Evolutionary Anthropology.
- Ethnologue report for language code:yuk
- Campbell 1997:132
- Ascher, Marcia (1994), Ethnomathematics: A Multicultural View of Mathematical Ideas, Chapman & Hall, ISBN 0-412-98941-7
- Chestnut, Victor King (1902). Plants used by the Indians of Mendocino County, California. Government Printing Office. Retrieved 24 August 2012.
- "Native American Audio Collections: Yuki". American Philosophical Society.
- Northern Yukian language overview at the Survey of California and Other Indian Languages
- OLAC resources in and about the Yuki language
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