self-slayer
nounEtymology From self- + slayer.
1
One who slays oneself; self-killer.
- John King made the key point: suicide was worse than other sins because it left no time for repentance, and so it was difficult to believe that many, if any, self-slayers were spared.2014, John Sym, Michael MacDonald, Lifes Preservative Against Self-Killing: