The Universal Atlas of Phonetic Evolution
Back to Matrix [ui] → [o] Edit this Data

[o]→[ui]Certainty: 4/5Commonality: 3/5

Close-mid back rounded vowel to Diphthong ui

The transformation of the close-mid back rounded vowel /o/ into the diphthong /ui/ involves a complex series of phonetic changes. This shift typically includes raising of the vowel, fronting from a back to a front position, and diphthongization from a monophthong to a gliding vowel sound. Additionally, the process often entails unrounding, particularly in the final element of the diphthong.

Phonetic Effects

Raising, Fronting, Diphthongization, Unrounding

Language Examples

/o/→/ui/— as part of the word /nit̪t̪o/ 'regularly' becoming /lit̪ui/

Related Transformations

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