From: tgpedersen
Message: 52822
Date: 2008-02-12
> > One still unsolved problem in PIE morphophonology is the existenceKortlandt
> > of two acrostatic ablaut patterns: *e:/*e (as in Narten presents,
> > sigmatic aorists and some root nouns)
>
> I thought someone showed that these were actually e:/zero roots, thus
> not so different from the standard ablaut pattern?
>