Published online by Cambridge University Press: 20 March 2020
The present paper discusses the hypothesis according to which a devoicing sound shift *sb- > sp-, *sd- > st-, *sg- > sk- took place in pre-Tibetan. I show that all examples supporting this putative sound shift have better explanations, and that this hypothesis creates more problems than it solves. In addition, I discuss data from modern Tibetic varieties, showing that no typological parallel for such a sound shift is attested.
Tibetan transliteration follows Jacques (2012a), and Middle Chinese is based on the system of Baxter (1992), with the onset consonants converted to IPA symbols.