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Borrowed from Japanese 追腹.
oibara (uncountable)
- Seppuku of a retainer at the time of his master's death.
- (Can we date this quote?), Yamamoto Tsunetomo, Hagakure
- At the time of Lord Nabeshima Naohiro's death, Lord Mitsushige forbade Naohiro's retainers the practice of oibara.