Re: [tied] n/r (was: PIE suffix *-ro - 'similar-with')

>> > there is _no_ nasal infix. There is a nasal suffix which, under
>> > certain
>> > conditions, undergoes metathesis.

>> What would you say these conditions are, under which a nasal suffix
>> metathesises?

> I do not know and I am not sure that we ever will.

Aah. Then it sounds to me like a plausible hypothesis, but one without
evidence. How would you distinguish a Cen-Co- root from a CeC-n-o or a
C(e)nC-o? The only way I can think of, is to look for forms without
the -n-, and alas, what we find in the evidence is an alternation between
CeC and CenC, an infix.

Peter