Shaliah
In Jewish law, a shaliaḥ (Hebrew: שָלִיחַ, [ʃaˈliaχ]; pl. שְלִיחִים, sheliḥim [ʃliˈχim] or sheliah, literally "emissary" or "messenger") is a legal agent. In practice, "the shaliaḥ for a person is as this person himself." Accordingly, a shaliaḥ performs an act of legal significance for the benefit of the sender, as opposed to him- or herself.
The term, in contemporary usage, has come to refer more generally to a representative or emissary.