Mania
WordNet
noun
(1) An irrational but irresistible motive for a belief or action
(2) A mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently
WiktionaryText
Etymology
From from .
Noun
- Violent derangement of mind; madness; insanity.
- Excessive or unreasonable desire; insane passion affecting one or many people; fanaticism