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.
Sika people
The Sika (also Sikanese, Sikka or Sara Sikka) people are an Indonesian ethnic group native to the region of east central Flores between the Bloh and Napung Rivers. In the city of Maumere, the center of the region, Sika people occupy a separate block. The Sika language, which is a member of the Timor-Ambon language family, is spoken by the Sika people. The Sika language have at least three recognized dialects, namely "Sikka Natar" dialect, "Sara Krowe" dialect and "Ata Tana 'Ai" or "Sara Tana 'Ai" dialect.