What is Rabitaland?

I was told by a friend that Rabitaland is old Germanic name of Arabia, but I can't find any reference about it.

All there is is Saerkland from old Viking travellers (and raiders and mercenaries).

Can you help me?
Thanks in advance!
 
I thought Serkland was the Norse term for all the Muslim parts of Asia, with "Blaland" (blue/black land) being the specific designation of North Africa.
 
I'm always fascinated how many times names of something in different languages are similar (Rabita -Arbit - Arabic) with just a few letters switched.
 
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