in behalf of

as the agent of or on someone's part (usually expressed as "on behalf of" rather than "in behalf of")

One who bids at an auction in behalf of the auctioneer or owner, for the purpose of running up the price of articles.

hence, in behalf of

A prefix signifying before, in front, forth, for, in behalf of, in place of, according to

a message issued in behalf of some product or cause or idea or person or institution n