Complex sentence: Yet another meaning connotes a "Way of the Dead"; e.g., in Grimm's "Worterbuch", "Helvegr" is the route to "Hel", the Underworld.
Split into simpler sentences: Yet another meaning connotes a "Way of the Dead". In Grimm's "Worterbuch", "Helvegr" is the route to "Hel", the Underworld.