>Can anyone tell me why it is that Greek neuter o-stem plurals end
in
<-a> and not <-e:>, as their counterparts in Latin, Gothic,
Slavic and (I
think) Vedic would suggest?
I'm not sure what you mean
here. Do you mean the neuters like genos (which
are really -s
stems 3rd declension) or the thematic neuters like ergon (2nd
declension)? Both show the neuter plural ending -a in Greek, but they
also
do in Latin. Where does this -e: you refer to come
in?
>I have heard that some consider the Latin eh2-stem ending
<-a>,
as well as the neuter o-stem plural <-a>, to represent a
short vowel
The neuter plural is originally long in both Greek and Latin
and in PIE
seems to have been either -long a or short schwa.
Peter