--- In firstname.lastname@example.org, Piotr Gasiorowski <gpiotr@...> wrote:
Actually, the only
> outcome that must be regarded as irregular is the one in Greek, but
> dialectal -kk- in <ikkos> is a regular reflex of the cluster *-k(^)w-
Ionic has other cases of original kW>k; I don't think it's the stage
kYw > kWkW that has dif. dia. reflexes, but kW and kWkW did later.