about the expression 'on someone's behalf'?

Question

I know the expression 'on (someone's) behalf' usually reads or is understood as 'instead of someone' but I'm wondering if it's possible for it to have a benefactive reading, that is, if it can be used to express one has been benefited by somebody else's action. Can anyone help me?

Answer 1

The phrase "on someone's behalf" actually means doing something for someone in place of them doing it themselves. It is entirely possible for this phrase to have a positive reading, it just depends on context.

Here's are some examples: "He accepted the punishment on my behalf, sparing me the agony I would face otherwise."

"My brother is having a tough time with this essay, so I'm writing it on his behalf."