Latin _ursus_ (was: HORSA vs. EXWA)

--- In cybalist@yahoogroups.com, "Tavi" wrote:

> --- In cybalist@yahoogroups.com, "Joao S. Lopes" wrote:

> > > Not only that, but /s/ is also *unexpected* here (assuming it's the
> > > reflex of *k'), because Latin is a "centum" language. Hence the
> > > hypothesis of borrowing from another IE language is plausible.

> > Why unexpected S? Shift ursus < *urxus is regular, isn't it?

> I suppose you meant **urksos, with /x/ = /ks/. This would indicate a
> borrowing from a satem language.

How does this match a Satem language? *urxus reflects -tk'- > -tsk'- > -kts-, unless I've missed something in the Latin simplification of consonant clusters.

Richard.