What is the origin of the idiom "do someone good" and when to use it?

The origin of the idiom "do someone good" is not entirely clear, but it is likely that the phrase emerged in the English language in the late Middle Ages. The phrase "do good" has been used in English since the 14th century to describe actions that are beneficial or helpful to others. The addition of the word "someone" to the phrase likely emerged in the 16th or 17th century, when the meaning of the phrase shifted to describe actions that are specifically beneficial to an individual. This expression is used to describe actions or behaviors that have a positive effect on someone's physical or mental health, well-being, or overall quality of life.