Origin: so called from making material “hop”a box, tank, rail car, etc., often funnel-shaped, from which the contents can be emptied slowly and evenly: the hopper of an automatic coal stoker
Origin: ME hoppere
See hopper in American Heritage Dictionary 4
Origin: Sense 2, from the shaking or hopping motion of grain hoppers as grain passed through them to the mill.
, Grace Murray 1906-1992.
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