diphthongize

verb diph·thong·ize \ˈdif-ˌthȯŋ-ˌīz, ˈdip-\

diph·thong·izeddiph·thong·iz·ing

Definition of DIPHTHONGIZE

intransitive verb

of a simple vowel

: to change into a diphthong

transitive verb

: to pronounce as a diphthong

— diph·thong·i·za·tion \(ˌ)dif-ˌthȯŋ-ə-ˈzā-shən, (ˌ)dip-\ noun

1867

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