Of, belonging to, or relating to the Assiniboine or their language.

Of, relating to, or designating the Missouri or their language. Now rare.

Of, relating to, or designating the Mandans.

Of or designating the Otoe people or their language.

Of or pertaining to this people or their language.

= Omaha, adj.

Of, relating to, or designating the Osage or their language.

Of, pertaining to, or belonging to either of the Gros Ventre peoples.

Of, relating to, or designating the chief division of the Lakota or Teton Sioux.

A Siouan Indian people formerly of Kansas and now in Oklahoma; also known as Kaw, n.; a member of this people. Also attributive or as adj.

Of, belonging to, or relating to the Dakota or their dialect. Also: of, belonging to, or relating to the Sioux language.

Of, belonging to, or relating to the Teton or their dialect.

Designating the Yankton or their dialect; of or relating to the Yankton or their dialect.

Of, belonging to, or relating to the Lakota or their dialect.