CONVULSE

[con.vulse] vb con.vulsed ; con.vuls.ing [L convulsus, pp. of convellere to pluck up, convulse, fr. com- + vellere to pluck--more at vulnerable] vt (1643): to shake or agitate violently; esp: to shake with or as if with irregular spasms ~ vi: to become affected with convulsions syn see shake