Western Siouan languages
The Western Siouan languages, also called Siouan proper or simply Siouan, are a large language family native to North America. They are closely related to the Catawban languages, sometimes called Eastern Siouan, and together with them constitute the Siouan (Siouan–Catawban) language family.
Assiniboine language
The Assiniboine language (also known as Assiniboin, Hohe, or Nakota, Nakoda, Nakon or Nakona, or Stoney) is a Nakotan Siouan language of the Northern Plains. The name Assiniboine comes from the term "Asiniibwaan", from Ojibwe, meaning "Stone Siouans". The reason they were called this was that Assiniboine people used heated stone to boil their food. In Canada, Assiniboine people are known as Stoney Indians, while they called themselves Nakota or Nakoda, meaning "allies""."