Murderer
Vine's Expository Dictionary of NT Words [1]
akin to phoneuo and phonos (see above), is used (a) in a general sense, in the singular, 1—Peter 4:15; in the plural, Revelation 21:8; 22:15; (b) of those guilty of particular acts, Matthew 22:7; Acts 3:14 , lit. "a man (aner), a murderer;" Matthew 7:52; 28:4 .
an adjective, lit., "manslaying," used as a noun, "a manslayer, murderer" (anthropos, "a man," kteino, "to slay"), is used of Satan, John 8:44; of one who hates his brother, and who, being a "murderer," has not eternal life, 1—John 3:15 (twice).
(or patral-) "a murderer of one's father," occurs in 1—Timothy 1:9 .
Acts 21:38Assassin.Mother
Webster's Dictionary [2]
(1): ( n.) A small cannon, formerly used for clearing a ship's decks of boarders; - called also murdering piece.
(2): ( n.) One guilty of murder; a person who, in possession of his reason, unlawfully kills a human being with premeditated malice.
King James Dictionary [3]
MUR'DERER, n. A person who in possession of his reason, unlawfully kills a human being with premeditated malice.
1. A small piece of ordnance.