Ah interesting I think Nedes are the ones from the frozen contiennt north of tamriel correct?
Nords are from Atmora, or rather their ancestors, who have no more apt name than proto-Nords.
The Nedes are humans who lived in Tamriel long, long before the first ship from Atmora. Like the Kothringi, they had their own independent racial and cultural groups. Histories always confuse the two human races, which look quite similar if you're an Altmer.
If you really think about it, the Nedes coming from Atmora doesn't stack up. So the settlers landed and spread out all over Tamriel peacefully, created their own culture and intermingled with the elves for many years and then suddenly all hell broke loose? Not likely. The ships from Atmora colonized Skyrim and fought with the Aldmer there. How could extreme cultural and racial diffusion have occurred simultaneously all over the continent? It would be like millions of Mongols building tailor shops in Paris even as their hordes sacked Hungary.
Edit: Okay, I'll admit it. Out-of-Atmora annoys me.