Webster's Revised Unabridged Dictionary · 1913

Ghastly

Ghastly , adjective

[Old English gastlich, gastli, fearful, causing fear, from gasten to terrify, Anglo-Saxon gastan. Compare Aghast, Gast, Gaze, Ghostly.]

1.
Like a ghost in appearance; deathlike; pale; pallid; dismal.
Each turned his face with a ghastly pang. — Coleridge
His face was so ghastly that it could scarcely be recognized. — Macaulay
2.
Horrible; shocking; dreadful; hideous.
Mangled with ghastly wounds through plate and mail. — Milton

Ghastly , adverb

In a ghastly manner; hideously.
Staring full ghastly like a strangled man. — Shakespeare