Re: IE *aidh- > *aus-tr- 'hot, warm (wind)'

--- In cybalist@yahoogroups.com, "dgkilday57" <dgkilday57@...> wrote:

> Buck's view was that *-dH-t- regularly became *-ddH-, but that in most cases this became *-dt- by analogy with other *-to-formations, and that *-ddH- regularly became Italic *-st-, while *-dt- of course proceeded through *-tt- to Italic *-ss-. It makes sense if we can justify the *-dt- as resulting ONLY when the word in question was still felt to be participial.
>

What reason is there to think dHt > ddH ever happened in Italic? The only thing I remember is that the Indic changes were felt to be PIE, part of the older theories which put too much emphasis on Indic ev., age, etc. (still felt today, while more important Indo-Iranian ev. is ignored).

The only explanation is that dHt > st then opt. > ts > ss there, like in many other IE branches (among other changes I've mentioned).