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Old English naþing, naðinc, from nan "not one" (see none) + þing "thing" (see thing). Meaning "insignificant thing" is from c.1600. As an adverb from c.1200. As an adjective from 1961.
Inane; lacking charm, talent, interest, etc; worthless: That was a real nothing experience (1950s+)
dance on air, do someone nothing, know from nothing