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 (ō′sāj′, ō-sāj′)
n. pl. Osage or O·sag·es
1. A member of 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 1900s.
2. The Siouan language of the Osage.

[French, from Osage wazházhe, ethnic self-designation.]

O′sage′ adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in classic literature ?
The Kansas resemble the Osages in features, dress, and language; they raise corn and hunt the buffalo, ranging the Kansas River, and its tributary streams; at the time of the captain's visit, they were at war with the Pawnees of the Nebraska, or Platte River.
Departure from Fort Osage Modes of transportation Pack- horses Wagons Walker and Cerre; their characters Buoyant feelings on launching upon the prairies Wild equipments of the trappers Their gambols and antics Difference of character between the American and French trappers Agency of the Kansas General Clarke White Plume, the Kansas chief Night scene in a trader's camp Colloquy between White Plume and the captain Bee- hunters Their expeditions Their feuds with the Indians Bargaining talent of White Plume
IT WAS ON THE FIRST of May, 1832, that Captain Bonneville took his departure from the frontier post of Fort Osage, on the Missouri.
I have struck the Pawnees, the Konzas, the Omahaws, the Osages, and even the Long-knives.
He was accompanied by eight men as far as Fort Osage, about one hundred and fifty miles below Nodowa.
The Osages and their Democracy: A Century and More of Conflict is a political tale that hinges on two crucial dates in Osage history-1881, the year the tribe wrote its constitution, and 1997, the year their restored constitution was revoked.
The most extensive study of the Osages was made by a member of the Omaha tribe, the excellent ethnologist and writer <IR> FRANCIS LA FLESCHE </IR> .
(30.) See, e.g., Treaty with the Great and Little Osages, Sept.
"All eight of the council members swore an oath of office that included a statement that we will 'always place the interest of all Osages above any and all special interests,'" he said.
government drove the Osages from their territory in Kansas to northeastern Oklahoma, no one knew about the rich oil deposits below the surface of their new land.
In times past, Osages on the battlefield didn't kill children; they brought them home and adopted them.
BECAUSE THEIR RESERVATION happened to cover remarkably rich oil deposits, the Osages of Oklahoma were virtually unique--at least until the advent of reservation gambling-in acquiring wealth that enabled many of them to meet the modern world with full pockets.