Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
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.