Fly-by-night (Grose 1811 Dictionary)

Fly-by-night

You old fly-by-night; an ancient term of reproach to an old woman, signifying that she was a witch, and alluding to the nocturnal excursions attributed to witches, who were supposed to fly abroad to their meetings, mounted on brooms.

Definition taken from The 1811 Dictionary of the Vulgar Tongue, originally by Francis Grose.

Fly-1 * Fly Slicers

Nearby

Nathan Bailey's 1736 Dictionary of canting and thieving slang

John S. Farmer's collection of canting songs and slang rhymes

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About

Francis Grose was independently wealthy, having inherited money from his father, a jeweller. Finding himself overspending, he published a number of books; his Provincial Glossary seems to have been the starting-point for the Vulgar Tongue reproduced here.