osage

noun, plural O·sag·es, (especially collectively) O·sage for 1.

1. a member of a North American Indian people formerly of western Missouri, now living in northern Oklahoma.
2. the Siouan language of the Osage.
3. a river flowing E from E Kansas to the Missouri River in central Missouri. 500 miles (800 km) long.

noun

1. plural Osages or Osage a member of a North American Indian people formerly living in an area between the Missouri and Arkansas Rivers
2. the language of this people, belonging to the Siouan family

name of a group of Siouxan Indians originally from Missouri, 1690s, via French, from their self-designation Wazhazhe. The ornamental tree osage orange (Toxylon pomiferum), name first attested 1817, originally was found in their country.