noun
parricide
PAIR-ih-side/ˈpærɪsaɪd/
The killing of a parent or close relative.
The novel centers on a parricide that tears a family apart.

Etymology
The probable connection with Latin parus, “relative,” gives the killing element a family relationship: the victim can be a close relative as well as a parent.
More examples
- The prosecutor describes the killing of his father as parricide.
- Her essay compares two parricides in ancient myths.
- Killing a close relative can also be classified as parricide.
Forms
parricide · parricides
parricidal adjective — Involving the killing of a parent or relative.
Similar words
- patricide
- Specifically means killing one's father, rather than any close relative.
- matricide
- Specifically means killing one's mother, rather than any close relative.
- homicide
- Covers the killing of any person, regardless of family relationship.