Propitiatory /(?)/

Pro·pi·ti·a·to·ry

Propitiatory

a.
  1. Having the power to make propitious; pertaining to, or employed in, propitiation; expiatory; as, a propitiatory sacrifice.

Propitiatory

n.
  1. The mercy seat; -- so called because a symbol of the propitiated Jehovah. (Jewish Antiq.)