yeoman's service

or yeoman service

noun

1. good, useful, or workmanlike service:

   His trusty sword did him yeoman's service.

Word History and Origins

Origin of yeoman's service¹

First recorded in 1595–1605

Example Sentences

During the entire campaign the regiment of Colonel Duffi did yeomans service.

From Project Gutenberg

The Cape has indeed done yeomans service to the English-speaking world.

From Project Gutenberg