sump Meaning, Definition & Usage

  1. noun an oil reservoir in an internal combustion engine
  2. noun a well or other hole in which water has collected
  3. noun a covered cistern; waste water and sewage flow into it
    cesspool; sink; cesspit.

WordNet

Sump noun
Etymology
Cf. G. sumpf a sump in a mine, a swamp, akin to LG. sump, D. somp a swamp, Dan. & Sw. sump, and perhaps to E. swamp.
Definitions
  1. (Metal.) A round pit of stone, lined with clay, for receiving the metal on its first fusion. Ray.
  2. The cistern or reservoir made at the lowest point of a mine, from which is pumped the water which accumulates there.
  3. A pond of water for salt works. Knight.
  4. A puddle or dirty pool. Prov. Eng.

Webster 1913