The Universal Atlas of Phonetic Evolution
Back to Matrix [x] → [kʰ] Edit this Data

[kʰ]→[x]Certainty: 5/5Commonality: 4/5

Voiceless aspirated velar plosive to Voiceless velar fricative

Spirantization of the voiceless aspirated velar stop [kʰ] to the velar fricative [x] is another hallmark of phonetic shifts in Greek and Germanic languages. This transformation exemplifies the general trend of lenition across aspirated series.

Phonetic Effects

Spirantization

Language Examples

[kʰ]→[x]— χ (chi) was initially [kʰ] and transitioned to [x] over time.
*k→x— PIE *k > *kʰ > [x] in Proto-Germanic (e.g., PIE *krut- > English heart).

Related Transformations

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