<p><strong>Verb (used with object)</strong></p><ul><li>to alter from a settled state; cause to be no longer firmly fixed or established; render unstable; disturb</li><li>to shake or weaken (beliefs, feelings, etc.); cause doubt or uncertainty about</li><li>to vex or agitate the mind or emotions of; upset; discompose</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to become unfixed or disordered</li></ul>