Etymology
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fly-by-night (n.)

1796, slang, said by Grose to be an old term of reproach to a woman signifying that she was a witch; used from 1823 in reference to anyone who departs hastily from a recent activity, especially while owing money. The different senses involve the two verbs fly.

updated on October 10, 2017

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Dictionary entries near fly-by-night

flutist

flutter

fluvial

flux

fly

fly-by-night

flyer

flying

Flynn

fly-over

flypaper