Re: [tied] PIE Formation Q/A (2)

--- In cybalist@yahoogroups.com, Piotr Gasiorowski <gpiotr@...>
wrote:

>
> On 2006-03-30 14:34, alexandru_mg3 wrote:
>
> > But what explanation could we have for the apparition of the o-

grades?

> > More specific:
> > - based on what rules an o-grade appears ? and why we do not
> > always have a nil-grade, for example?
>
> The vast majority of the "pretonic o-grades" occur in certain
> well-defined types of words: the "<tomós>/<tomé:> type", thematic
> derivatives of *-men- abstracts in *-m/n-ó- or *-m/n-áh2 (with

secondary

> accent retraction in heavy roots), causative/iterative verbs.

Jens's

> O-infix theory, discussed here several times, accounts for all

these

> cases rather successfully.
>
> Piotr
>

Thanks, Piotr. Any hint regarding where I could read Jens's O-infix
theory?
Marius