Yours, Etc.: Origins and Uses of 8 Sign-Offs
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.
Very quickly: When I heard the signal, I got over there in nothing flat (1940s+)
Inane; lacking charm, talent, interest, etc; worthless: That was a real nothing experience (1950s+)
dance on air, do someone nothing, know from nothing