convulse

/kən-ˈvəls/

Latin convulsus, past participle of convellere to pluck up, convulse, from com- + vellere to pluck

verb

  1. to shake or agitate violently; especially : to shake with or as if with irregular spasms

  2. to become affected with convulsions

shake agitate rock convulse mean to move up and down or to and fro with some violence. shake often carries a further implication of a particular purpose. agitate suggests a violent and prolonged tossing or stirring.