From: tgpedersen
Message: 52571
Date: 2008-02-10
>If PPIE had had other vowels than i, a, u it would not had let a
>
>
> PPIE a -> e, o, zero.
> PPIE i -> i:, i:, i -> ei, ei, i -> ei, oi, i
> PPIE u -> u:, u:, u -> ou, ou, u -> eu, ou, u
>
> The last step was made for systematic reasons, not phonological ones
> (and only partially).
> =============
> I nearly agree.
> But PPIE *o is not the same thing as PPIE *a > e, zero.
> It's also unclear whether zero or °Not. Zero degree of the two other vowels are *i and *u, not zero.
> is always from *a or from any other vowel.