convulse v. + Add to list UK //kənvˈʌls// con·vulse SynonymsEtymology Synonyms jactitateslashthrashthreshtossOriginLATconvulsus→ENconvulse From Latin convulsus, past participle of convellere (“to pluck up, dislocate, convulse”), from com- (“together”) + vellere (“to pluck, pull”). Doublet of convel.