The Universal Atlas of Phonetic Evolution
Back to Matrix [f] → [w] Edit this Data

[w]→[f]Certainty: 4/5Commonality: 3/5

Voiced labio-velar approximant to Voiceless labiodental fricative

The transformation of the voiced labio-velar approximant /w/ to the voiceless labiodental fricative /f/ is a phonetic shift that involves both a strengthening of articulation (fortition) and a loss of voicing (devoicing), accompanied by a shift in the place of articulation from labio-velar to purely labiodental.

Phonetic Effects

Fortition, Devoicing, Place Assimilation

Language Examples

*w→f— Proto-Celtic *w developed into /f/ in Old Irish. This is evident in the f-future tense and in the historical reconstruction of Ogam symbols.

Related Transformations

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