pump (1) Look up pump at Dictionary.com
"apparatus for forcing liquid or air," c.1440, possibly from M.Du. pompe "water conduit, pipe," or M.L.G. pumpe "pump," both from some North Sea sailors' word, possibly of imitative origin. The verb is recorded from 1508. Metaphoric extension in to pump (someone) for information is from 1667. Pumper "fire engine tha pumps water" is recorded from 1915.
pump (2) Look up pump at Dictionary.com
"low shoe without fasteners," 1555, perhaps echoic of the sound made when walking in them, or perhaps from Du. pampoesje, from Javanese pampoes, of Arabic origin.
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