旧きゅう恨こん

noun

old grudge; long-standing resentment

Literary or formal term for a grudge held from the past. Not used in everyday conversation; more common in written narratives or historical contexts.

• 彼かれは旧きゅう恨こんを忘わすれず、復ふく讐しゅうの機き会かいをうかがっていた。

  He never forgot his old grudge and waited for a chance to take revenge.