s’ama is peace.
s’ambhu is the one who causes peace, s’iva, the auspicious.
s’amantaka is the one who ends/destroys peace, kAma, the God of desire.
It just occured to me that the s’amantaka maNi which showered gold, given by sUrya to satrAjit, actually left a wake of death till it was finally given to kRSNa.
So it WAS a desirable destroyer of peace!!