Yank·to·nai
| \ ˌyaŋk-tə-ˈnā
\
\
plural Yanktonai or Yanktonais
Definition of Yanktonai
: a member of a Dakota people of the upper Midwestern United States
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“Yanktonai.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Yanktonai. Accessed 28 May. 2022.
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The first known use of Yanktonai was in 1863
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