They could have been a bit more original than sticking a U in Orcs.
Orcus is an actual ancient Roman deity -or was it Etruscan?- of the dead and the Underworld. He is a LEGIT mythological figure...as opposed to the complete fabrications of these other so-called "artifacts."

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.