[x]→[f]Certainty: 5/5Commonality: 4/5

Voiceless velar fricative to Voiceless labiodental fricative

The shift from the voiceless velar fricative [x] to the voiceless labiodental fricative [f] is a form of labialization. It typically occurs when the velar sound is preceded by a rounded vowel or a labial glide, causing the point of articulation to migrate from the velum to the lips.

Phonetic Effects

Labialization, Assimilation

Language Examples

Old English to Modern English Germanic

tōh [x]→tough [f]— The final velar fricative labialized after the rounded vowel.

hliehhan→laugh [f]

Dutch to German Germanic

lucht [x]→Luft [f]— German regularly shifted this fricative to a labial in specific lexemes.

Related Transformations

Reverse Alternative: Debuccalization

More Germanic Shifts

[a] → [ã] — Assimilatory Nasalization [a] → [∅] — Elision [a] → [ʔ] — Glottalization [a] → [ə] — Vowel Reduction [æ] → [ɛ] — Vowel Raising

Sources & References

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