Yanktonai

[yangk-tuh-nahy]
noun, plural Yank·to·nais, (especially collectively) Yank·to·nai.
  1. a member of one of two tribes of Dakota Indian people who inhabited the northern Great Plains in the 18th and 19th centuries.Compare Yankton(def 1).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018