parricide

noun

1. the act of killing one’s father, mother, or other close relative.
2. a person who commits such an act.

noun

1. the act of killing either of one’s parents
2. a person who kills his parent

n.1. “person who kills a parent or near relative” (1550s), also 2. “act of killing parent or near relative” (1560s), both from Middle French parricide (13c. in sense 1, 16c. in sense 2), from 1. Latin parricida, 2. Latin parricidium, probably from parus “relative” (of uncertain origin, but cf. Greek paos, peos “relation,” Sanskrit purushah “man”) + 1. cida “killer,” 2. cidium “killing,” both from caedere (see -cide).