I. ō-ˈsāj, ˈō-ˌ noun
( plural Osag·es or Osage )
Etymology: French, probably from an Algonquian language, from Osage wažáže, a self-designation
Date: 1698
1. : a member of an American Indian people originally of Missouri
2. : the Siouan language of the Osage people
II. ō-ˈsāj, ˈō-ˌ geographical name
river E Kansas & Missouri flowing E into Missouri River; now partly submerged in Lake of the Ozarks