matricide Copy link Outline I. The crime1. mātrĭcīdium2. parrĭcīdium matrisII. The perpetrator • matricide: I. The crime: 1. mātrĭcīdium: Cic. Inv. 1, 13, 18. 2. parrĭcīdium matris: Suet. Ner. 34, fin. (Or expr. by verb: to be guilty of m., matrem necare s. occidere: Cic. Inv. l. c.) II. The perpetrator: mātrĭcīda, ae, c.: Cic.: Suet.