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American Indian
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n.
A member of any of the peoples indigenous to the Americas except the Aleut, Inuit, and Yupik.

American Indian adj.

Usage Note: In principle, American Indian can apply to all native peoples throughout the Americas except the Aleut, Inuit, and Yupik, but in practice it is generally restricted to the peoples of the United States and Canada. For native peoples in the rest of the hemisphere, usage generally favors Indian by itself or, less frequently, the contractions Amerindian or Amerind. See Usage Notes at First Nation, Indian, Native American.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.