ETYM French, from Latin parricida; pater father + caedere to kill. Related to Father, Homicide, Patricide.
1. Murder of one's own parents.
2. Someone who kills his or her parent.
3. Killing of parent or close relative.
4. Killer or killing of parent, close relative, or king, etc.

ETYM Latin pater father + caedere to kill. Related to Parricide.
1. A person who murders his father.
2. Murder of one's father.
3. Killing or killer of own father; traitor or act of treason.

ETYM Latin parricidalis, parricidialis. Related to Parricide.
Of or pertaining to parricide; guilty of parricide.