noun Date: 14th century the quality or state of being mad: as, rage , insanity , extreme folly, ecstasy , enthusiasm , any of several ailments of animals marked by frenzied behavior
MADNESS
Meaning of MADNESS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012