`  ::Klaeber refers to Orcus in his glossary entry on ``orc-neas``.  Whether subsequent scholars have given other etymologies, I don't know, but I believe Kleaber is the standard.  He translates ``orc-neas`` as ``evil spirits``, while Chickering says ``walking dead``.  In either case, please note that Grendel is not directly described as ``orc-neas``; rather, ``orc-neas`` are, like Grendel, descended from Cain.  `