A Penutian language spoken by the Shahaptian WordNet 3.0 & Open English WordNet

Sahaptin or Shahaptin, endonym Ichishkin, is one of the two-language Sahaptian branch of the Plateau Penutian family spoken in a section of the northwestern plateau along the Columbia River and its tributaries in southern Washington, northern Oregon, and southwestern Idaho, in the United States; the other language is Nez Perce or Niimi'ipuutímt. Wikipedia

Native American language Wikidata

A member of a Native American people who occupied a large territory along the Columbia river in northern Idaho, Oregon and Washington. Wiktionary