From: Richard Wordingham
Message: 47250
Date: 2007-02-04
>Shibboleth? :)
>
> > This Old Irish nasalization takes place after former previous nasal,
> > and its surprising it should happen here. The only ending that looks
> > promising for postulating an ending in a nasal is *-au/*-a:, which
> > would then be *-onW/-o:, and perhaps *-inW/*-unW for the -i and
> > -u-stem's *-i: and *-u:. Why it is limited to the neuter in Old Irish,
> > I don't know. The Dsg of "two" is Skt. dvabhyam.
> >
>
> I forgot: In Old Irish the numerals 7, 8, 9 and 10 all nasalize the
> following initial. PIE 7, 9 and 10 end in nasal, but 8 is a dual.