diphthongise diphthongic • diphthongization · · · Info · Definitions · Synonyms · Characters · · diphthongise · · Text Latin · · Script 12 · · Length 3 · · Syllables Definitions · · · (verb) change from a simple vowel to a diphthong. Synonyms: diphthongize. Example: "This vowel diphthongized in germanic." · · Verb Definition 1 Synonyms · · · diphthongize · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074