רָצַח râtsach (H7523)

properly, to dash in pieces, i.e. kill (a human being), especially to murder

1) to murder, slay, kill 1a)(Qal) to murder, slay 1a1) premeditated 1a2) accidental 1a3) as avenger 1a4) slayer (intentional) (participle) 1b) (Niphal) to be slain 1c) (Piel) 1c1) to murder, assassinate 1c2) murderer, assassin (participle) (subst) 1d) (Pual) to be killed

a primitive root;