verb (used without object), su·per·er·o·gat·ed, su·per·er·o·gat·ing.
Origin of supererogate
Related formssu·per·er·o·ga·tion, nounsu·per·er·o·ga·tor, noun
Examples from the Web for supererogation
But the excess must be in the line of duty; merely needless and irrelevant action is not supererogation.Write It Right|Ambrose Bierce
Some readers will consider such an inquiry to be a work of supererogation.On the Genesis of Species|St. George Mivart
Would to God that our labor of love could be regarded as a work of supererogation!The Anti-Slavery Examiner, Omnibus|American Anti-Slavery Society
But it would be work, of supererogation to multiply instances of similar calamity.
A new work on the subject of Mary Queen of Scots runs an eminent risk of being considered a work of supererogation.Life of Mary Queen of Scots, Volume I (of 2)|Henry Glassford Bell