1. One agreed upon or appointed to judge or decide a disputed issue; an arbitrator.
2. One whose opinion or judgment is considered authoritative or worthy of respect: an arbiter of fashion.
[Middle English arbitre, from Old French, from Latin arbiter, of Phoenician origin; see ʿrb in the Appendix of Semitic 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.