静める

しずめるshizumeru

ichidan verb · transitive

1. to quiet (a child, crowd, etc.)
2. to quieten
3. to make quiet
4. to calm (one's nerves, excitement, etc.)
5. to compose (oneself)
6. to appease (someone's anger)
7. to pacify
8. to settle (e.g. discord)

Study it in Yanamino