noun
bewitched sword; magical sword; demon sword
Refers to a sword with supernatural or cursed properties, often in fantasy or historical fiction. The term implies the blade itself has a malevolent or magical nature.
その妖刀は持ち主に不幸をもたらすと言われている。
That bewitched sword is said to bring misfortune to its owner.
彼は妖刀を手に入れ、その力に魅了された。
He obtained a demon sword and was fascinated by its power.