From: fournet.arnaud
Message: 53060
Date: 2008-02-14
> development of ablaut PIE had two non-high vowel phonemes with the============
> approximate values *& (mid) and *a (low). The former became the "ablaut"
> vowel *e/*o, the latter became *a/*a: (merging with those instances of
> *e that got a-coloured).
>
> Piotr
>