Re: [tied] Re: IE thematic presents and the origin of their themati

Rob wrote:

> Yet I thought long vowels were not subject to laryngeal "coloring",
> so we should expect *pe:sto:r here. Of course, that is exactly what
> we don't see.
>
> On another note, I do agree that *pex- 'protect' seems to be a root
> durative and so would form a sigmatic aorist *pe:xs-.

Note the chronology of sound changes:

pre-PIE *pe:h2-s-tér- >
*peh2-s-tér- (pretonic shortening) >
*péh2-s-t(o)r- (stress shift and associated changes) >
*páh2-s-t(o)r- (colouring by *h2 in PIE)

Piotr