Of, relating to, causing, or characterized by rotation, especially around an axis.
n. pl. ro·ta·ries
1. A part or device that rotates around an axis.
2. Chiefly New England See traffic circle.
[Medieval Latin rotārius, from Latin rota, wheel; see ret- in the Appendix of Indo-European roots.]
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:
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.