Siouan languages
Siouan languages can be grouped into the Western Siouan languages and Catawban languages. The Western Siouan languages can be divided into Missouri River languages (such as Crow and Hidatsa), Mandan, Mississippi River languages (such as Dakotan, Chiwere-Winnebago, and Dhegihan languages), and Ohio Valley Siouan branches. The Catawban languages consist only of Catawban and Woccon.
Shakori
The Shakori were associated with other Siouan tribes of the Piedmont, such as the Sissipahaw and Eno, and they all are believed to have spoken the same Siouan language. Scholars debate whether the Shakori, Eno, and Sissipahaw were different tribes or bands of the same tribe. This distinction became moot as the tribes merged with one another as their numbers decreased. Although they merged into remnants of other tribes and the larger Catawba, their Siouan dialect survived as late as 1743 among the Eno. They resisted Catawba assimilation the longest.