Definition of convulse:
quake, shudder, count against, fidgety, lick, sky, cut down, jerk, someone's stomach churns/lurches/tightens, thresh about, jolt, flail, toss away, stir, contortion, lather, someone's heart pounds/beats/thumps, lam, torment, dispose, inhibit, bring up against, amuse, vibrate, unsettle, shake up, contort, mosh, jiggle, hold back, jounce, plague, wobble, embarrass, bat, quiver, joggle, throw out, welt, repetition, throttle, trounce, the pit of your stomach, settle, flip, cast away, judder, fidget, calm, cream, flounder, fit, fling, lash, let down, cast out, torture, shake, gash, bother, rock, strap, rock, clobber, cast aside, slam dance, convulsion, writhe, toss, chuck, slash, toss out, put away, bucket, burden, pitch, discard, have/get/feel butterflies (in your stomach), thresh, stiffen, flutter, flog, inside, thrash about, disadvantage, drub, slam, jactitate, shake, throw away, chuck out, thrash.
derange (part of speech: verb)
First came a low gurgle like that of suppressed bubbles in a fountain, then a sharp, crackling breaker of sound, and then a long, deep roar of liberated mirth that seemed to shake and heave the whole man, and to convulse the very air around him.- "Capt'n Davy's Honeymoon 1893", Hall Caine.
A serene joy passed over the features of the three, thus quietly originating a plan which was, with an earthquake's power, to make every throne in Europe totter, and to convulse Christendom to its very center.- "Madame Roland, Makers of History", John S. C. Abbott.
With military and diplomatic affairs in this state and with Austria still holding out for her impossible conditions, 'twas easy for Dumouriez and the war party to browbeat the wellnigh desperate King into a declaration of hostilities that was to convulse the whole of Europe for nearly a quarter of a century.- "Calvert of Strathore", Carter Goodloe.