homicida (general term): parricida (of a person naturally sacred and inviolable, as of a father, mother, brother or sister, magistrate, prince, etc.; where perspicuity requires it, also with a word denoting the individual on whom the murder is committed; as parricida liberum, Liv., 3, 50; parricida regis, patriae, exercitus, Curt., 6, 9, 30; parricida parentis sui, Curt., 8, 7, 2): sicarius (an assassin): percussor (one who smites; sometimes as a milder expression for sicarius; Vid: Cic., Rosc. Am., 33, 93): auctor necis (the originator of a murder; opposed to conscius necis, i. e., one privy to it). The murderer of anyone, alicujus interfector (never, except where the context determines the sense, used without a word denoting the individual murdered. ☞ We find occisor alicujus only in Plaut., Mil., 4, 2, 64; interemtor and peremtor are of later origin, and therefore to be avoided): the murderer of a brother, fratricida; of a mother, matricida.