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

[o]→[ue]Certainty: 5/5Commonality: 5/5

Close-mid back rounded vowel to Diphthong ue

The spontaneous diphthongization of open 'o' in stressed syllables is another major feature of Romance vowel development, similar to the shift from 'e' to 'ie'.

Phonetic Effects

Spontaneous Diphthongization

Language Examples

porta→puerta— Latin open 'o' diphthongizes in stressed syllables in Spanish.
morte→muerte— Latin open 'o' diphthongizes in stressed syllables in Spanish.

Related Transformations

More Romance Shifts

Sources & References

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