to make unable or unfit; weaken or destroy the capability of; cripple; incapacitate

He was disabled by blindness.

to make legally incapable; disqualify.

verb

aid , assist , enable , help , improve

verb

attenuate , batter , blunt , damage , debilitate , disarm , disenable , disqualify , enervate , enfeeble , exhaust , hamstring * , handicap , harm , hock * , hogtie * , hurt , immobilize , impair , incapacitate , invalidate , kibosh * , knock out * , maim , mangle , mar , mutilate , muzzle , paralyze , pinion , prostrate , put out of action , render incapable , ruin , sabotage , sap , shatter , shoot down * , spoil , take out * , throw monkey wrench in , total * , unbrace , undermine , unfit , unstrengthen , weaken , wreck , cripple , knock out , founder , hamstring , hinder , hobble , hogtie , inactivate , lame