Re: [tied] Vrddhi in sigmatic aorist

>Szemerényi [says:]... even though the lengthening does not
>take place in Greek, ...

There are good signs that it might originally have been present even in
Greek. Szemerenyi himself outlines these (p 282 of his Einfuhrung) and
Sihler follows him (p 510 of his Comparative Grammar of Gk and Latin).

Peter