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

P&G wrote:

> If the -o- grade indicates habitually doing it, this might help explain the
> use of -o- grade in compound nouns and adjectives, such the last vowel in
> me:tropato:r (mother's father).

That's more likely the effect of compound stress, making the second
element lose some of its prominence. Note the o-grade of the unaccented
syllable in *népo:t-s, *tétk^o:n, *méh1no:t-s, etc. Posttonic *o: in
*-p&2to:r (Gk. apáto:r < *n.'-p&2to:r, etc.) seems to be part of the
same pattern.

Piotr