The art of producing trance-sleep, or hypnosis; or the state of being hypnotised. (Greek, hupnos, sleep.)
“The method, discovered by Mr. Braid, of prod ucing 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
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894