> I don't think the preterite would have survived long enough to be
> envolved in such a development, and I doubt the "colouring power" of
> -bh- to change stressed -e- to -ú- (a long one at that!). So seeing as
> the preterite was being gradually replaced by the old perfect forms by
> Middle Irish, I would prefer the following sequence:
> 1. OIr. as·rubairt "has said"
> 2. OIr. at·rubairt "has said it"
> 3. MidIr. at·rubairt "(has) said"
> 4. with -ub(h)a- > -ú-, (a)trúirt
> 5. This should result in ModIr. *drúirt, but somewhere along the way
> dissimilation occurred to remove the first -r-, therefore in the end
Yes, that's probably better for the reasons adduced.