Ooops, you found a broken link.
I’m so sorry!
It’s no fun getting lost, and there’s not much I can do
to help — unless you’d like to drop me a line.
The etymology is incorrect.
The Old Norse los is more a “cousin” to the Old English verb forleosan,
which is the ancestor of the Old English forms that gave rise eventually to the English verb lose.
(You can trace the details here.)
But the writing is quite nice.