Re: [tied] Re: ab o:uo:

To explain the lengthened grade locatives of i- and u-stems, I have
suggested a development [*-oui >] *-ouu [= *-owu] > *-o:u and *-eii [=
*-eyi] > *-e:i. Maybe the same rule can be applied to the egg-word:

*h2ewi- "bird" -> o-grade them. adj. *h2owiyo-, by assimilation
*h2owuyo-, and then by the lengthening rule *h2o:wyo-.