The Universal Atlas of Phonetic Evolution
Back to Matrix [ʈ] → [t] Edit this Data

[t]→[ʈ]Certainty: 5/5Commonality: 4/5

Voiceless alveolar plosive to Voiceless retroflex stop

Retroflexion of the dental stop [t] to [ʈ] or [tʂ] occurs through assimilation to a preceding retroflex consonant, or through rhotacism in Sino-Tibetan languages where r-clusters (e.g., tr- or -r clusters) develop into retroflex stops. This is a major phonetic process in both Indo-Aryan and Tibetic languages.

Phonetic Effects

Retroflexion, Assimilation, Rhotacism

Language Examples

Classical Tibetan t- and tr- consonant clusters→Modern Lhasa Tibetan ʈ [tʂ] or ʈʰ [tʂʰ]— Historical consonant clusters with r (e.g., tr-, thr-) developed into retroflex affricates. The subjoined r in Classical Tibetan orthography marks the historical rhotacization process: tʂ/tʂʰ.
Classical Tibetan written subjoined -r (e.g., tshogs troop)→Modern Lhasa tʂʰ [tʂʰ]— The subjoined r was historically a retroflex-conditioning element, creating the modern retroflex affricate series in Lhasa Tibetan.
*t before retroflex consonants (RUKI environment)→ʈ— Dental stop becoming retroflexed by preceding [ʂ] (e.g., in past participles like 'iṣṭa' [ɪʂʈə] from 'ish + ta').
*ni-sd-os (PIE, Sanskrit nesting)→nīḍá- [ɲɪɖá]— RUKI rule: sibilant-triggered retroflexion of *d → ḍ. The preceding sibilant [ʂ] caused retroflexion of the following consonant.

Related Transformations

More Assimilation Shifts

Sources & References

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