intercession

Entreaty in favor of another, especially a prayer or petition to God in behalf of another.

Mediation in a dispute.

The act of interceding; mediation; interposition between parties; solicitation or entreaty in behalf of, or sometimes against, a person or an action.

In liturgics, a petition or group of petitions for various orders of men and classes in the church, whether living or departed; a form of conjoint or mutual prayer for or with the living, the departed, saints, and angels.

The act of interceding; mediation; interposition between parties at variance, with a view to reconcilation; prayer, petition, or entreaty in favor of, or (less often) against, another or others.