Depends on how many skill points you have into the appropriate passive.
Personally, I wouldn't chance it. Why not sell the weapon to someone for research purposes, and with that money buy a nirn stone? Or trade the weapon straight across for the stone.
You have zero - it is nirnhoned. This trait is special. I decon 2-3 items, and have nothing. Not much, but good luck if you want to do the same...