介かい錯しゃく人にん

noun

second in seppuku; kaishakunin

Historical term for the person who beheads a samurai performing seppuku to end the ritual. Often translated as 'second' or 'kaishakunin'.

See also: 介錯

• 介かい錯しゃく人にんは切せっ腹ぷくの際さいに首くびを斬きる役やく目めを負おう。

  The kaishakunin is responsible for beheading the person performing seppuku.

noun

assistant; helper

Rare modern extension; used for someone who assists or helps, often in a supportive role. Less common than the historical sense.

• 彼かれはプロジェクトの介かい錯しゃく人にんとして資し料りょうをまとめた。

  He organized the materials as an assistant for the project.