Propitiatory (adjective)

1. Designed or intended to gain or regain someone's favor or goodwill.
2. Serving to appease or conciliate.

Origin:

From the latin word propitiatorium, which means "atoning.".

Examples:

1. He made a propitiatory offering to the gods to seek their forgiveness.
2. The company made a propitiatory gesture to its customers after the recent data breach.
3. The propitiatory ritual was performed to ward off evil spirits.
4. She made a propitiatory sacrifice in hopes of securing a good harvest.
5. The school administration made a propitiatory announcement to the parents regarding the latest policies.