--- In cybalist@..., Miguel Carrasquer <mcv@...> wrote:
> Slavic -es^I, -etU ,, *-esI, *-etI
Proto-Slavic *-es^I, *-etI (as in East Slavic), Old Church Slavonic
is aberrant here. On the other hand, the idea of agglutinated *tU
seems to be supported by Old Prussian with its agglutinated -ts
(<*tas ?).