sewer

Meanings

1. 1
   noun

   an underground pipe or channel that carries away sewage or surface water, or a system of such pipes and channels

   Heavy rain overwhelmed the sewer and flooded the street.

From Middle English sewer, through Anglo-Norman sewere and Old French sewiere ('watercourse or overflow channel'), probably from a Vulgar Latin form built from Latin ex ('out') + aqua ('water'). The word originally named a channel for carrying water away.

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