--- In
cybalist@yahoogroups.com, "Patrick Ryan" <proto-language@...>
wrote:
> It is without precedent for a preceding glottal stop to voice anything.
1. Preglottalisation is pretty close to implosiveness, and implosives
are voiced.
2. The modern Tai voiced stops are generally reconstructed as
deriveing from pre-glottalised stops. Pre-glottalisation is evidenced
by pre-glottalised reflexes in a very few languages and by
pre-glottalised stops and glottal stops having the same effect on tone
in a few dialects.
Richard.