E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The art of producing trance-sleep, or hypnosis; or the state of being hypnotised. (Greek, hupnos, sleep.)
The method, discovered by Mr. Braid, of producing this state appropriately designated hypnotism, consists in the maintenance of a fixed gaze for several minutes on a bright object placed somewhat above [the line of sight], at so short a distance [as to produce pain].Carpenter: Principles of Mental Physiology, book ii. chap. i. p. 65.