v. to haunt, torment, plague with fear
n. haunting

Nafni wahlaan qethsegol bormahii vahrukt, Rognvald, wen Zii fen mahfaeraak aak ok brod, ahrk folook ok hokoron.
Nafni raised this stone for his father, Rognvald, whose Spirit will forever guide his clan, and haunt his enemies.
(Word Wall for Zii, Become Ethereal)

To strike pervading fear, esp. from something that is incorporeal, inanimate, or metaphorical, such as a spirit, a weapon, or a defeat in battle.