Board Thread:Lore Discussion/@comment-25343239-20180302213507/@comment-36212953-20190425220220

I'm late for the party, but like Patbob said, Nelacar was able to restore your soul from Azura's Star. Those were special, controlled circumstances and the Star is the artifact of a Daedra prince, so a more general answer might still be "no". But in theory, the quest suggests that this is possible, even if only with outside help.

Let's hope Dagoth Vemyn doesn't have necromancy-practicing friends.