The Universal Atlas of Phonetic Evolution
Back to Matrix [tʃ] → [k] Edit this Data

[k]→[tʃ]Certainty: 5/5Commonality: 5/5

Voiceless velar plosive to Voiceless postalveolar affricate

Velar palatalization of [k] to the postalveolar affricate [tʃ] is a widespread historical phonetic shift, typically triggered by following front vowels or the palatal glide [j]. This process, often involving an intermediate palatal stop stage [c], is a defining feature of the Slavic First Palatalization and the development of several Romance languages from Latin. In English, this is seen in the 'ch' of words like 'chin' (from Proto-Germanic *kinnus).

Phonetic Effects

Palatalization, Affrication, Velar Fronting, Yod-coalescence

Language Examples

Velar stop [k] before high vowels [i], [u]→Palatalized affricate [tʃ] or [c]— Georgian undergoes velar palatalization before high vowels, historically and phonologically: /k/ > [tʃ] before [i], as seen in plural forms and diminutives.
*kery→*čery [tʃ]— Development before front vowels. E.g., Russian 'četyre' (four) from PIE *kwetwor-.
*vlkъ→*vlk-iči > volčij— Vocative forms and diminutives: *vlk-e > volče.
centum [k]→cento [tʃ]— Latin /k/ before front vowel /e/.
civitas [k]→città [tʃ]— Latin /k/ before front vowel /i/.
cinn [k]→chin [tʃ]— Old English palatalization before front vowels.
/k/ before /e/, /i/→[c] or [tʃ]— Turkish velar stops /k, ɡ/ are palatalized to [c, ɟ] when adjacent to front vowels /e, i/ in native words. E.g., kedi (cat) [ke.di], kız (girl) [kɯz] vs. gemi (ship) [ɡe.mi]. Also observable in diminutives and derivative affixes.
Proto-Mayan *k before front vowels→tʃ (ch)— A defining sound change of the Cholan-Tseltalan branch: Proto-Mayan *k and *k' shifted to /ch/ and /ch'/ in specific phonological contexts. E.g., attested in Tzeltal and Chol. Recent research suggests this change spread through areal contact during the Classic period rather than solely through genetic inheritance.
Proto-Mayan *k'→ch' [tʃʼ]— The ejective counterpart *k' also underwent affrication to ch' in Cholan and Tseltalan languages, confirming the systematic nature of the shift.

Related Transformations

More Romance Shifts

Sources & References

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