Propitiation (noun)

1. The act of propitiating, or the state of being propitiated; appeasement, conciliation.
2. An act of offering or a sacrifice made to regain the favor of a deity or spirit.

Origin:

From latin propitiatio, from propitiare ("to appease, conciliate").

Examples:

1. The villagers made a propitiation to the volcano god to prevent eruptions.
2. The king's grand temple was a propitiation to the gods.
3. The ritual sacrifice was a propitiation to the gods.
4. The people's offerings of food and drink were a propitiation to the spirits of their ancestors.
5. The ceremony of purification was a propitiation to the deity.