D defs.my
Entry 1 sense Webster, 1913

Diphthongize

· Diph·thong·ize · IPA /ˈdɪfθɑŋaɪz/
01 v. t. & i. To change into a diphthong, as by affixing another vowel to a simple vowel.
  1. 1.
    To change into a diphthong, as by affixing another vowel to a simple vowel.