>On second thoughts: <eiða> was a fairly rare poetic term in Old Norse,
>wasn't it? (Proto-)Finnish presumably borrowed the word at a time when
>it had less restricted currency, and when the phonetic form was still
>something like *aiþi: -- so it seems the borrowing must have been pre-ON

anyway.

Agreed.

It has been suggested that the word "Edda" is related to "eiða".

Haukur