Sa·hap·ti·an 
(sä-hăptē-ən) also Sha·hap·ti·an (shä-)
(sä-hăptē-ən) also Sha·hap·ti·an (shä-)n.
1. A North American Indian language family spoken in Washington, Oregon, and Idaho and comprising the Sahaptin and Nez Perce languages.
2. A member of a Sahaptian-speaking people.
Sa·hapti·an adj.