一切經音義 87.276

87.276

弑逆（施志反白虎通云弑者何猶殺也言臣子殺其君父候伺可稍稍試之也說文從殺省式聲也）。

Regicide and rebellion (弑逆: [弑 is] *shi* [*shì* / shī zhì], the Baihu tong says: 'What is shi? It is like slaying; it refers to a minister or son slaying his lord or father, spying out an opportunity and gradually testing it.' The Shuowen says: '[Derived] from an abbreviated 殺 with a 式 phonogram').