from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of diphthongisation.
from the GNU version of the Collaborative International Dictionary of English
- n. The act of changing into a diphthong.
from The Century Dictionary and Cyclopedia
- n. Same as diphthongation. Also spelled diphthongisation.
Sorry, no etymologies found.
As written, the diphthongization is a kind of threnody in its own right.
An adjoining palatal sound could, however, prevent the diphthongization.