ghostly

Etymology

From Middle English gostly, gastlich, from Old English gāstlīċ (“spiritual, holy, clerical (not lay), ghastly, ghostly, spectral”), from Proto-West Germanic *gaistalīk (“spiritual”), equivalent to ghost + -ly. Cognate with Scots ghaistly, gaistly (“spiritual, ghastly, terrifying”), West Frisian geastlik (“spiritual, clerical, religious”), Dutch geestelijk (“spiritual, clerical, ecclesiastical”), German geistlich (“spiritual, sacred, religious”), Danish geistlig (“ecclesiastical, clerical”).

adj

1. Of or pertaining to ghosts or spirits.
   a ghostly figure with a hood
   The graveyard was haunted by a ghostly figure of a young girl.
   The ghostly moaning was heard from upstairs.
2. Spooky; frightening.
   A ghostly hush fell.
   Scores of coconut-shell fires blazed with their characteristic glaring white flame, throwing grotesque shadows on the brown thatched huts, dancing in fairylike shimmerings among the domes of coconut fronds, casting ghostly reaches of light through the adjacent graveyards, and silhouetting the forms of pareu-clad natives at work cleaning their fish or laying them on the live coals to broil. 1929, Robert Dean Frisbee, The Book of Puka-Puka, Eland, published 2019, page 35
   His lips were chapped and lined with a ghostly purple fringe. 2019, Dave Eggers, The Parade, N.Y.: Vintage Books, page 134
3. (archaic) Relating to the soul; not carnal or secular; spiritual.
   a ghostly confessor