Siouan

nouns

a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains

Siouan, Sioux

a family of North American Indian languages spoken by the Sioux

Siouan, Siouan language

of or relating to the Sioux people or their language and culture

Siouan

is derived from

pertains to