supererogatory

Meanings

1. 1
   adj

   more than is needed, desired, or required

   The extra report was useful but entirely supererogatory.

From Latin superērogātōrius (“supererogatory”), from superērogātiō (“payment in addition”), from superērogō (“pay out over and above”), from super (“above”) + ērogō (“pay out, expend”); from ex (“out of, from”) + rogō (“ask; request”).

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