verb (-ized; -izing) Date: 1867 intransitive verb to change into a diphthong, transitive verb to pronounce as a diphthong, diphthongization noun
DIPHTHONGIZE
Meaning of DIPHTHONGIZE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012