n. pl. Hidatsa or Hi·dat·sas
1. A member of a Native American people inhabiting an area along the Missouri River in western North Dakota.
2. The Siouan language of this people. In both senses also called Gros Ventre.
[Hidatsa hirá·ca (originally the name of the largest division of the Hidatsa people), of unknown origin (although traditionally thought to be derived from wirahacitatí, willow tree houses).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. 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:
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.