Quell - Put an end to (a rebellion or other disorder), typically by the use of force

The peasants' rebellion against the king was quelled as soon as his army massacred hundreds of them.

Verb

Group Aggressive

Quell - Suppress (a feeling, especially an unpleasant one)

After the company's stock plummeted, the CEO tried to quell investors' outrage by assuring them everything was fine.

Verb

Group Aggressive