E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Yeomans Service.
Regular hard work; effectual service; excellent service whether in a good or bad cause. The reference is to the yeomen of the Free Companies.
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The whole training of Port Royal did him yeomans service.Shorthouse: Sir Percival, p. 56.
We found a long knife, and a knotted handkerchief stained with blood, with which Claude had no doubt recently done yeomans service.Miss Robinson: Whitefriars, chap. viii.