Ponca

noun
Pon·​ca
variants: or Ponka \ ˈpäŋkə \
plural Ponca or Poncas or Ponka or Ponkas

Definition of Ponca

1a : a Siouan people of the Missouri river valley in northeastern Nebraska
b : a member of such people
2 : a dialect of Dhegiha spoken by the Ponca people