verb (used with object), eu·pho·nized, eu·pho·niz·ing.
to make euphonious.
Also especially British, eu·pho·nise.
Origin of euphonize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to make pleasant to hear; render euphonious
to change (speech sounds) so as to facilitate pronunciation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012