Cheyenne

Cheyenne (Tsėhésenėstsestȯtse, pronounced [tse̥hésene̥stsesto̥tse], informal spelling Tsisinstsistots) is an indigenous language of North America, spoken mainly in present-day Montana and Oklahoma, in the United States. It is a member of the Algonquian language family, and named for the Cheyenne peoples, who are native to the Great Plains of the United States.

Cheyenne is an endangered language. The endangerment is primarily a result of the English being the most spoken language in the world, due to the global influences of the former British Empire (succeeded by the Commonwealth of Nations) and the United States.