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.
Ta’Oi language
Ta’Oi (Ta’Oih, Ta Oi) is a Katuic dialect chain of Salavan and Sekong provinces in Laos, and in Thừa Thiên-Huế province in Vietnam (Sidwell 2005:12).