1. Between; among: international.
2. In the midst of; within: intertropical.
3. Mutual; mutually: interrelate.
4. Reciprocal; reciprocally: intermingle.
[Middle English entre-, inter-, from Old French entre-, from Latin inter-, from inter; see en 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.