diphthongize Meaning, Definition & Usage

  1. verb change from a simple vowel to a diphthong
    diphthongise.
    • This vowel diphthongized in Germanic

WordNet


Diph"thong*ize transitive verb & intransitive verb
Definitions
  1. To change into a diphthong, as by affixing another vowel to a simple vowel. "The diphthongized long vowels." H. Sweet.

Webster 1913