Bulletin of SOAS, 79, 2 (2016), 347–374. Ⓒ SOAS, University of London, 2016. doi:10.1017/S0041977X16000070 A Phonological History of Amdo Tibetan Rhymes* Xun G (author's draft) Centre de recherches linguistiques sur l'Asie orientale INALCO/CNRS/EHESS
[email protected] Abstract In this study, a reconstruction is offered for the phonetic evolution of rhymes from Old Tibetan to modern-day Amdo Tibetan dialects. e rel- evant sound changes are proposed, along with their relative chronological precedence and the dating of some speci�c changes. Most interestingly, although Amdo Tibetan, identically to its ancestor Old Tibetan, does not have phonemic length, this study shows that Amdo Tibetan derives from an intermediate stage which, like many other Tibetan dialects, does make the distinction. 1 Introduction Amdo Tibetan, a dialect complex of closely related Tibetan varieties spoken in the Chinese provinces of Qinghai, Gansu and Sichuan, is, demographically, linguisti- cally and culturally, one of the most important dialects of Tibetan. e historical phonology of syllable onsets of Amdo Tibetan is well studied (Róna-Tas, 1966; Sun, 1987), notably for its fascinating retentions and innovations of the complex consonant clusters of Old Tibetan (OT). e rhymes (syllable nuclei and coda) have received less attention. *is work is related to the research strand PPC2 Evolutionary approaches to phonology: New goals and new methods (in diachrony and panchrony) of the Labex EFL (funded by the ANR/CGI). I would like to thank Guillaume Jacques and two anonymous reviewers for various suggestions which resulted in a more readable and better-argued paper. 1 is study aims to reconstruct the phonetic evolution of rhymes from Old Ti- betan1 to modern-day Amdo Tibetan dialects.