Is it ensure, insure, or assure?
1807, "a driving stroke made with the arms in full swing," perhaps a dialectal variant of sweep (n.), or in part from obsolete swip "a stroke, blow" (c.1200), from Proto-Germanic *swip-, related to Old English swipu "a stick, whip." Other possible sources or influences are Middle English swope "to sweep with broad movements" (in reference to brooms, swords, etc.), from Old English swapan; obsolete swaip "stroke, blow;" or obsolete swape "oar, pole."
1825, from swipe (v.). The slang sense of "steal, pilfer" appeared 1885, American English; earliest use in prison jargon:
The blokes in the next cell, little Charley Ames and the Sheeney Kid, they was hot to try it, and swiped enough shoe-lining out of shop No. 5, where they worked, to make us all breeches to the stripes. ["Lippincott's Magazine," vol. 35, June 1885]Meaning "run a credit card" is 1990s. Related: Swiped; swiper; swiping.
A narcotics dealer; connection (1960s+ Narcotics)
A work shift between the regular day and night shift, typically from four to midnight (1941+)