Word

diphthongise, v.
(diphthongised, diphthongises, diphthongising)

change from a simple vowel to a diphthong
<verb.communication>

diphthongise diphthongize

"This vowel diphthongized in Germanic"

Something ----s

Something ----s

lexical pointers

derivationally related form

semantic pointers

hypernym

hyponym