pl.Osages or Osage a member of a North American Indian people that migrated, over time, from the east coast of the U.S. to the Piedmont, then to Missouri, Kansas, and Oklahoma
the Siouan language of this people
Origin:
< Osage Wazhazhe
river in central Mo. & E Kans., flowing east into the Missouri: c. 500 mi (805 km)
a. A Native American people formerly inhabiting western Missouri and later southeast Kansas, with a present-day population in north-central Oklahoma. Substantial oil reserves were discovered on Osage lands in the early 20th century.