Sahaptianic language family is a group of languages of several Native American tribes on the Columbia Plateau region of Washington, Oregon, and Idaho in the northwestern United States.

Tribes

• Upper Cowlitz or Taidnapam
• Kittitas
• Klickitat
• Nez Perce
• Palus (Palouse)
• Tenino (Warmsprings)
• Umatilla
• Walla Walla
• Wanapum
• Yakama

Bibliography

Nez Perce vowel harmony

• Aoki, Haruo. (1966). Nez Perce vowel harmony and proto-Sahaptian vowels. Language, 42, 759-767.
• Aoki, Haruo. (1968). Toward a typology of vowel harmony. International Journal of American Linguistics, 34, 142-145.
• Aoki, Haruo. (1970). Nez Perce grammar. University of California publications in linguistics (Vol. 62). Berkeley: University of California Press. ISBN 0-5200-9259-7.
• Chomsy, Noam; & Halle, Morris. (1968). Sound pattern of English (pp. 377-378). Studies in language. New York: Harper & Row.
• Hall, Beatrice L.; & Hall, R. M. R. (1980). Nez Perce vowel harmony: An Africanist explanation and some theoretical consequences. In R. M. Vago (Ed.), Issues in vowel harmony (pp. 201-236). Amsterdam: John Benjamins.
• Jacobsen, William. (1968). On the prehistory of Nez Perce vowel harmony. Language, 44, 819-829.
• Kim, Chin. (1978). 'Diagonal' vowel harmony?: Some implications for historical phonology. In J. Fisiak (Ed.), Recent developments in historical phonology (pp. 221-236). The Hague: Mouton.
• Lightner, Theodore. (1965). On the description of vowel and consonant harmony. Word, 21, 244-250.
• Mithun, Marianne. (1999). The languages of Native North America. Cambridge: Cambridge University Press. ISBN 0-521-23228-7 (hbk); ISBN 0-521-29875-X.
• Rigsby, Bruce. (1965). Continuity and change in Sahaptian vowel systems. International Journal of American Linguistics, 31, 306-311.
• Rigsby, Bruce; & Silverstein, Michael. (1969). Nez Perce vowels and proto-Sahaptian vowel harmony. Language, 45, 45-59.
• Zimmer, Karl. (1967). A note on vowel harmony. International Journal of American Linguistics, 33, 166-171.
• Zwicky, Arnold. (1967). More on Nez Perce: On alternative analyses. International Journal of American Linguistics, 37, 122-126.