diphthongize
[dif-thawng-ahyz, -gahyz, -thong-, dip-]Phonetics
verb (used with object), diph·thong·ized, diph·thong·iz·ing.
to change into or pronounce as a diphthong.
verb (used without object), diph·thong·ized, diph·thong·iz·ing.
to become a diphthong.
Also especially British, diph·thong·ise.
Origin of diphthongize
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
diphthongize
diphthongise
verb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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