The Universal Atlas of Phonetic Evolution
Back to Matrix [ts] → [s] Edit this Data

[s]→[ts]Certainty: 4/5Commonality: 3/5

Voiceless alveolar fricative to Voiceless alveolar affricate

Affrication of alveolar fricative [s] to affricate [ts] represents a fortition process commonly triggered by word-initial position or post-nasal strengthening. This shift is well-documented in Old Chinese historical phonology, where fricatives strengthened to affricates before high vowels, contributing to the modern Mandarin sibilant inventory.

Phonetic Effects

Affrication, Fortition, Strengthening

Language Examples

Old Chinese *s-→Middle Chinese ts- (aspirated or unaspirated)— Fricative strengthening to affricate in word-initial position before high vowels [i], creating the modern Mandarin ts (z) and tsh (c) distinction
Old Chinese *sun→Middle Chinese *tsuən— Affrication of *s- before high vowel, leading to modern Mandarin cūn /tsʰwən/
[s] post-nasal in casual speech→[ts] (affricated variant)— Modern Mandarin shows optional strengthening of word-initial or post-nasal [s] to [ts] in rapid speech

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