1. Existing or occurring between; intermediate.
2. Acting as a mediator or an agent between persons or things.
n. pl. in·ter·me·di·ar·ies
1. One that acts as a mediator.
2. One that acts as an agent between persons or things; a means.
3. An intermediate state or stage.
[Probably French intermédiaire, from Late Latin intermedius, intermediate; see INTERMEDIATE.]
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.