intercede

To plead on another’s behalf.

To act as mediator in a dispute.

To come between; pass or occur intermediately; intervene.

To make intercession; act between parties with a view to reconcile those who differ or contend; plead in favor of another; interpose; mediate: followed by with, formerly sometimes by to.

To pass between.

To be, to come, or to pass, between; to separate.

To pass between; to intervene.

To act between parties with a view to reconcile differences; to make intercession; to beg or plead in behalf of another; to mediate; — usually followed by with and for or on behalf of.

To plea on someone else’s behalf.

To act as a mediator in a dispute; to arbitrate or mediate.