cripple

Noun

• someone who is unable to walk normally because of an injury or disability to the legs or back

Verb

• deprive of the use of a limb, especially a leg
  • The accident has crippled her for life
    

• deprive of strength or efficiency; make useless or worthless
  • This measure crippled our efforts
    
  • Their behavior stultified the boss's hard work
    

Related words

• Synonyms: 
  lame , stultify