I'm trying to figure out what "skal-at-tu" means. I looked this up in
Zoega's dictionary, but I can't figure out how the compound is constructed.
This is the verse where I found it:

113. Ráðumk þér, Loddfáfnir,
en þú ráð nemir, -
njóta mundu ef þú nemr,
þér munu góð ef þú getr -:
fjölkunnigri konu
skal-at-tu í faðmi sofa,
svá at hon lyki þik liðum.


Any ideas?

Thanks,

Steven