A sudden drop or decline in value, performance, or mood; or to fall heavily or collapse into a lower position.
From Scandinavian languages, possibly Middle Low German 'slumpen' meaning 'to fall.' Related to Dutch and Swedish words for collapse or drooping. The exact origin is debated.
The word 'slump' might come from Scandinavian languages where it originally meant physical drooping—which is why we use it both for sagging bodies and sagging economies!
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