Webster's Revised Unabridged Dictionary · 1913

hag-ridden

hag-ridden (hag"rid`d'n) , adjective

Ridden by a hag or witch;
afflicted with nightmares; tormented or harassed by nightmares or unreasonable fears. — Beattie
hagridden... by visions of an imminent heaven or hell upon earth — C. S. Lewis

Also: hagridden