(see below), Winnebago (perhaps from Potawatomi winpyéko , "(people of the) dirty water"), [ 4 ] Sioux (ultimately from Ottawa naadowesiwag ), [ 4 ] Assiniboine ( Ojibwe asiniibwaan , "stone Sioux") [ 2 ] and Chipewyan ( Cree čīpwayān , "(those who have) pointed skins or hides"). [ 5 ]