Etymology
Advertisement

blackout (n.)

also black-out, 1908 in the theatrical sense of a darkened stage, from black (v.) + out (adv.). Figurative sense of "loss of memory" is 1934 (verb and noun); as "a dousing of lights as an air raid precaution," it is recorded from 1935. Verbal phrase black out, in reference to printed or written matter deemed objectionable and covered in black ink, is attested from 1888.

updated on June 05, 2017

Advertisement
Advertisement
Definitions of blackout from WordNet

blackout (n.)
a suspension of radio or tv broadcasting;
blackout (n.)
darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft);
Synonyms: brownout / dimout
blackout (n.)
the failure of electric power for a general region;
blackout (n.)
a momentary loss of consciousness;
blackout (n.)
partial or total loss of memory;
he has a total blackout for events of the evening
Synonyms: amnesia / memory loss
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.