Selv wrote:

>...or maybe it was just a scribal/typographic error?

Where do you mean the eror was?

(in cod.reg. or in Finnur?)

Take a look at Þrymskviða, verse 1 (F.J. p. 114):

Re,iðr vas þá Vingþórr,
es hann vaknaði
ok síns hamars
of saknaði,
. . .

What does the cod.reg. have?

Cheers
Keth



P.S. I went looking for the reference I thought I had on the
use of the relative frequency of OF/UM to date Old Norse poems.
All I found now was Joseph Harris' review of Fidjestøl's
book on the dating of Eddic poetry. But I see there, that one
of the basic references is to Hans Kuhn's work of 1930.
Harris writes: "The resulting list ranking eddic poems by
particle use gives a sophisticated (and philologically improved)
version of what Kuhn had offered, and the two lists do correspond,
at least roughly (e.g. Þrymskviða has highest use, and Atlamál
lowest). "