The word "quell" means to put down forcibly. This implies using force or power to suppress or control something, such as a rebellion, protest, or disturbance. It suggests the act of forcefully ending or suppressing something, often to restore order or peace. The other options, "to destroy," "to speak of to attack as false or questionable," and "to damage," do not accurately capture the meaning of "quell," which specifically refers to forcefully putting down or suppressing something.