宿怨

しゅくえん【宿怨】

old grudge 〖C〗前々からの恨み.

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しゅくえん【宿怨】

an old [a deep-seated] grudge; long-harbored resentment; enmity; 〔長く解けない不和〕 an old [a long-standing, a blood] feud.

●宿怨を抱く bear sb an old grudge; harbor [nurse] deep-rooted rancor [an old grudge] 《against sb》

・宿怨を晴らす settle an old score 《with sb》.