Re: [tied] Timing of ablaut

>(Brugmann's Law) ... The claim made on the basis of presumed regular
>short /o/ in *H3ew-i-s and *H3ep-os will have to be that the coloration
>product of /e/ by preceding /H3/ was significantly different from /o/ from
>other sources in the protolanguage, and that the difference was retained,
>of all places, in the pre-Indo-Iranian language stage in which *e, *a, *o
>had not yet coalesced into the later common product *a.

Yes, that's the claim. Presumably o > a: while H3e is still H3e. If the
cakarHa / caka:ra alternation has any strength, then this suggests exactly
that o > a: before laryngeals disappeared in I-I. There are other
indications of a laryngeal presence in the Rgveda, so the timing is not too
difficult.

Peter