جن

جُنُونٌ جنون : see جِنٌّ, first sentence, in two places. -A2- Also, inf. n. of جُنَّ; (S, K;) [originally signifying A state of possession by a جِنِّىِّ, or by جِنّ; diabolical, or demoniacal, possession; and hence meaning] loss of reason; or madness, insanity, or unsoundness in mind or intellect; (Mgh;) or deficiency of intellect: (Sb, TA:) [it may generally be rendered possession, or insanity: ] ↓ جُنُنٌ is a contraction thereof; (S, K;) or accord. to some, an original form: (MF, TA:) and ↓ جَنَّةٌ, also, (an inf. n. and a simple subst., S,) signifies the same as جُنُونٌ: (S, Msb, K:) as also ↓ مَجَنَّةٌ, (S, K,) and ↓ جُنَانٌ, but this last is vulgar. (TA.) ― -b2- Also Persistence in evil; and pursuance of a headlong, or rash, course. (Ham p. 14.)