castrate, damp, dampen, deaden, dehydrate, desiccate, devitalize, enervate, geld, lobotomize

burn out, debilitate, do in, drain, enfeeble, exhaust, fatigue, sap, tucker (out), undermine, weaken, wear, wear outdaunt, demoralize, discourage, dishearten, dispirit

brace, energize, enliven, invigorate, quicken, stimulate, vitalize, vivify

arouse, rouse, stircharge, electrify, galvanizeexcite, ferment, fire, foment, incite, inflame(also enflame), instigate, kindle, provoke, spark, trigger, whip (up)abet, boost, buoy, cheer, embolden, fortify, hearten, inspire, liftreactivate, reanimate, reawake, reawaken, recharge, reenergize, refresh, regenerate, rejuvenate, rekindle, renew, resurrect, resuscitate, revitalize, revive