Torment
Part of speech: noun
Definition: A catapult or other kind of war-engine. Torture, originally as inflicted by an instrument of torture. Any extreme pain, anguish or misery, either physical or mental.
Part of speech: verb
Definition: To cause severe suffering to (stronger than to vex but weaker than to torture.)
Example sentence: It's really crazy looking back on my bullies or whoever was trying to torment me or tease me, because karma is just, like, crazy.
Bedevilment
Part of speech: noun
Definition: The characteristic of being bedeviled.