Past Participle of Verbs in -sk- (was: Nature, virtus etc.)

--- In cybalist@yahoogroups.com, "alex" <alxmoeller@...> wrote:

> Richard Wordingham wrote:

> > _na:tus_ 'born' is the past participle of _na:scor_ 'be born'.
>
>
> strange participle , isn't it? it appears as a reduction

of "*nascotus" or

> how is to explain the "nat-" from "nasco-"?

The -sk- and its accretions are a present stem suffix. They
normally don't appear in the past participle, or indeed the perfect
tense.

> and if a reduction, then why should be a such big cluster

reducced ?

> na-sko-tus > na-tus ?
> I think at other verbs as "pasceo" which does not have a

participle as

> "*patus" so the reduction appears unlike here..

_pa:sco:_ 'feed, graze (trans.)' has an unusual past participle.
The perfect, _pa:vi:_, shows the general restriction of the suffix
to the present stem.

Richard.