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.
Pedee people
Little is known about what language the Pedee spoke. Based on a theory proposed by James Mooney in his 1894 "Siouan Tribes of the East", and reinforced by John R. Swanton in his 1936 essay "Early History of the Eastern Siouan Tribes", the Pedee are believed to have spoken a Siouan language, specifically an "Eastern" or "Southeastern" Siouan language. No vocabulary of the Pedee language has been recorded.