Unsettle :: Unsettle (v. t.) To move or loosen from a settled position or state; to unfix; to displace; to disorder; to confuse.
Unsettle :: Unsettle (v. i.) To become unsettled or unfixed; to be disordered.
Unsettlement :: Unsettlement (n.) The act of unsettling, or state of being unsettled; disturbance..