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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).
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018