Etymology of the English word convulsant
the English word convulsant
derived from the English word convulse
derived from the Latin word convulsus (suffering from wrenching, dislocation of a limb)
derived from the Latin word convellere (pull, pluck, tug; shatter, batter, convulse)
using the Latin prefix con- (together)
derived from the Latin word vellere (pluck, pull, tear out)
using the English suffix -ant
derived from the French word convulsant
derived from the French word convulser