主しゅう殺ごろし

noun

murder of one's master

Refers to the act of killing one's own master or lord, often in a historical or feudal context.

• 主しゅう殺ごろしは武ぶ士しにとって最さい大だいの恥はじとされた。

  Murdering one's master was considered the greatest shame for a samurai.

noun

murderer of one's master

Refers to the person who kills their own master or lord.

• 彼かれは主しゅう殺ごろしとして追おわれる身みとなった。

  He became a fugitive as the murderer of his master.