Diphthongization
/ˌdɪfθɔːŋəˈzeɪʃn,ˌdɪpθɔːŋəˈzeɪʃn/
Definition 1 of 1
Pro Tip 1/3Pronunciation Clue
Diphthongization often changes how a word sounds, giving pronunciation clues to its origins or age. 
The diphthongized 'ow' in 'cow' suggests Old English origins.
Pro Tip 2/3Regional Variation
Diphthongization can vary regionally; recognizing it helps understand accents and dialects. 
In some accents, 'time' has a more pronounced diphthongization.
Pro Tip 3/3Understanding Poetry
Poets may use diphthongization for rhyme or rhythm, impacting how poetry is read aloud. 
Understanding diphthongization enriches the reading of Shakespeare's verses.