Also spelled cess-pool
Meanings
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Thesaurus
Simplified etymology
Cesspool originally meant a trap beneath a drain that caught solid matter. It may be an alteration, influenced by pool, of the archaic word suspiral, meaning a vent, water pipe, or settling tank. Suspiral came from Old French souspirail, “air hole,” ultimately combining Latin sub-, “from below,” with spirare, “breathe.”
Etymology
From earlier sesspool; the first element is uncertain and may reflect Italian cesso, 'privy,' or an English dialect word for mud or a puddle. Association with pool helped establish the modern form. The figurative sense compares moral corruption with accumulated sewage.