Archaic literary term for madness or insanity. In modern Japanese, 狂気 (きょうき) or 精神異常 (せいしんいじょう) are more common.
In classical literature, the word 癲狂 was used to express madness.
mental hospital; asylum; bedlam
Compound of 癲 (てん, 'mental illness') and 狂 (きょう, 'madness'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning of insanity.