Refers to a magical incantation or spell, often written on a talisman or used in esoteric Buddhist or folk practices. The term is somewhat specialized and may appear in historical or fantasy contexts.
The monk chanted an incantation to ward off evil spirits.
A small spell was written on that amulet.
Compound of 符 (ふ, 'charm, talisman') and 呪 (じゅ, 'spell, curse'). The exact historical derivation is uncertain, but the term is associated with esoteric Buddhist and folk magic traditions.