diphthongize

[ dif-thawng-ahyz, -gahyz, -thong-, dip- ]
/ ˈdɪf θɔŋˌaɪz, -ˌgaɪz, -θɒŋ-, ˈdɪp- /
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

First recorded in 1865–70; diphthong + -ize

OTHER WORDS FROM diphthongize

diph·thong·i·za·tion, noun

Words nearby diphthongize

diphtheritic, diphtheritic membrane, diphtheroid, diphthong, diphthongia, diphthongize, diphycercal, diphyletic, diphyllobothriasis, diphyllobothrium, diphyllous

British Dictionary definitions for diphthongize

diphthongize

diphthongise

/ (ˈdɪfθɒŋˌaɪz, -ˌɡaɪz, ˈdɪp-) /

verb

(often passive) to make (a simple vowel) into a diphthong

Derived forms of diphthongize

diphthongization or diphthongisation, noun