Thanks Haukur! Here's another thing that's just occured to me. I
wrote "Final -rr > -r, e.g. optarr > oftar", but this doesn't apply
when the root ends in rr.

herr (gen. hers) > her

knörr (gen. knarrar) > knörr



--- In norse_course@yahoogroups.com, Haukur Þorgeirsson
<haukurth@...> wrote:

>
> > 1. The ending -r > -ur after consonants, e.g. maðr > maður,

Hildr >

> > Hildur. Also where -ur is part of the root, e.g. fagr > fagur,
> > fagrt > fagurt. This doesn't apply where a vowel follows in the
> > ending (nökkrir > nokkrir), except with the suffixed definite
> > article: maðrinn > maðurinn.
>
> It's even more tricky than that.
>
> hestur > hesturinn
> vetur > veturinn
> (Hildur > Hildurin)
>
> but
>
> mastur > mastrið
>
> Kveðja,
> Haukur
>