--- In cybalist@..., Jens Elmegaard Rasmussen <jer@...> wrote:

> It was restored: o-stems had IE *-o:ns, so a-stems got *-a:ns, both
> acute, in Lith. as well as in Greek.

Just to clarify the matters: do you explain the o-stems' acute as
analogical after *a:-stems or do you agree with those who state any
tautosyllabic *-V:R- (not necessarily underlied by *-VHR- or *-VRH-)
yields Balto-Slavic acute (and the laryngeal or a Winterian media is
not necessary here).