n. pl. eu·pho·nies
Agreeable sound, especially in the phonetic quality of words.
[French euphonie, from Late Latin euphōnia, from Greek euphōniā, from euphōnos, sweet-voiced : eu-, eu- + phōnē, sound; see bhā-2 in the Appendix of Indo-European roots.]
eu·phonic (y-fŏnĭk) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.