Bethesda has copyrighted a sentence. Mojang copyrighted a word. They are two different things. A swedish court will ultimately decide if that is the case.

Originally Posted by Motoki
There's nothing particular scoll-ish about those games and I think most people know them more commonly by 'Morrowind', 'Oblivion', 'Skyrim' etc anyway.

As their registered trademarks confirm.