Re: The meaning of life: PIE. *gWiH3w-
I did not write "bare *Co:C noun".
I think nominative -*s is a suffix for most people.
According to Pokorny, Greek <phôs> is from *bha:u- via <páo(u)s>.
I have no reason for disbelieving that.
light Phô(s) is *bhoH2
boat nâu(s) is *neH2w
*bheH2u should be **phâu in Greek.
I haven't checked Pokorny
but this *bha:u is obviously wrong.