A Penutian language spoken by the Shahaptian people

• Washington Indian
• A member of a North American Indian people who lived in Oregon along the Columbia river and its tributaries in Washington and northern Idaho

Wikipedia Word definitions in Wikipedia
The Sahaptin were a number of Native American tribes who spoke dialects of the Sahaptin language . The Sahaptin tribes inhabited territory along the Columbia River in the Pacific Northwest region of the United States . Sahaptin-speaking peoples included ...