Jimbly wrote:Diamond Dog wrote:The term "Gaslighting" comes from the 1944 George Cukor film "Gaslight" whose central plot is that of a husband trying to drive his wife insane in order to distract her from his criminal activities.
which was a remake of a British movie from 1940.
According to Wikipedia it comes from the original play on which both films were based. As the first time the expression appeared in print was 1969 I have no idea how anyone knows which of the sources directly inspired it.