From: Miguel Carrasquer Vidal
Message: 47252
Date: 2007-02-04
>> This Old Irish nasalization takes place after former previous nasal,The neuter NA dual always merged with the NA singular in Old
>> 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.Cf. Greek combining okta- "8-", based on hepta- "7-", Slavic
>>
>
>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.