>Is there any attested 'stress-accented thematic aorist' of *gWem-
> 'go, come' -- i.e., *gW(o)mé-? Or was it replaced by the sigmatic
>variety?
From the PIE aorist *gWem-/gWm- we have:
Vedic ágan, ágman (g normalised)
Avestan -j&:n -gm&n (j normalised)
Armen. ekn (3 sing)
Homeric bate:n (3 dual); elsewhere be:- forms normalised)
Lithuanian gemù ("be born")
Tocharian B s^man; pret B kamem. A s^mäs
The sigmatic aorist gamis.t.am appears in the Rgveda, and other sigmatic
forms appear later (gamsi:s.t.a, gasi:s.t.a, agam.si etc).
The sigmatic aorist does not appear in Greek, but the future is built (as
often) on a sigmatic "aorist" stem: be:somai)
Peter