tyrannism

tyr·an·nism

(tir'ă-nizm),
A form of sadism characterized by a lust for domination and cruelty, with subsequent humiliation of the partner.
[G. tyrannos, a tyrant]
(1) Sadism
(2) A form of sadism in which domination and cruelty play a central erotic role

tyrannism

(tir'an-izm) [Gr. tyrannos, tyrant, + -ismos, condition] Sadism.