Jon
There are five notations like the two you've
mentioned and they are to be found on page 331 of Gordon's 'An Introduction
to Old Norse'
Here they are
e - n (einhvern) = accusative
of the person
e - t
(eitthvat) = accusative of the thing
e - m (einhverjum) = dative of the
person
e -
u (einhverju) = dative of the
thing
e -
s (einhvers) = genitive of the
person or thing.
As for your example, hlotnast
(ađ), v. refl. to fall to one's lot (e-m hlotnast e-t) - very
crudely I would transcribe this as 'It fell to the lot for him(e -m) with
death(e -u). Properly translated we might say 'It was his lot to meet
death. Hope this helps
Cheers
Jed