Re: [tied] Greek labiovelars

> But why is *gW so special?
> I see no reason why *kW and *gWH should remain as /kW/ and /gW/
> but *gW must become /b/.
> Why not also *kW > /p/ and *gWH > /b/?

Maybe *gW was able to become /b/ because there was no other *b
(except of small number of borrowed or onomatopoeic words) ,
whereas *kW and *gWH did not become /p/ and /bH/
because this place was already occupied by original /*p/ and /*bH/ ?

P. A.