Hopper

wiktionary

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From Middle English hoppere, alteration of *hoppe (found in gras-hoppe(“grasshopper”)), from Old English hoppa(“one who hops, hopper”), equivalent to hop +‎ -er. Cognate with Dutch hopper(“hopper”), Swedish hoppare(“hopper, jumper”), Icelandic hoppari(“hopper”).

From Sinhalese ආප්ප(āppa).

etymonline

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hopper (n.1)

"person or animal that hops," mid-13c., agent noun from hop (v.). From c. 1200 as a surname, and perhaps existing in Old English (which had hoppestre "female dancer").

hopper (n.2)

"container with a narrow opening at the bottom," late 13c., probably an agent noun from hop (v.1) via the notion of the grain juggling in a mill hopper or the mechanism itself, which was set to operate with a shaking motion. Railroad hopper-car is from 1862.