Word Origin & History
dumpc.1300, "throw down or fall with force," from a Scandinavian source (cf. Dan. dumpe, Norw. dumpa "to fall suddenly"). The sense of "unload en masse" is first recorded in Amer.Eng. 1784. Related: Dumped; dumping. The noun "place where refuse is dumped" is attested from 1865, originally of mining operations.
EXPANDMeaning "act of defecating" is from 1942.
dumps"low spirits," 1523, possibly from Du. domp "haze, mist," from M.Du. damp "vapor" (see
damp).
COLLAPSE