IN THE RAVEN WHAT IS MOST CLOSELY THE MEANING OF GHASTLY AS IT USED IN THE FOLLOWING PASSAGE?

BY THE GRAVE AND STREN DECORUM OF THE COUNTENANCE IT WORE THROUGH THY REST BE SHORN AND SHVEN THOU I SAID ART SURE NO CRAVEN

GHASTLY GRIM AND ANCIENT RAVEN WANDERING FROM THE NIGHTLY SHORE TELL ME WHAT THY LORDLY NAME IS ON THE NIGHTS PLUTONIAN SHORE QUOTH THE RAVEN NEVEMORE