cripple

nouns

someone who is unable to walk normally because of an injury or disability to the legs or back
cripple
is a type of (narrower)
a human being
"there was too much for one person to do"
individual, mortal, person, somebody, someone, soul

verbs

deprive of strength or efficiency; make useless or worthless
"This measure crippled our efforts"; "Their behavior stultified the boss's hard work"
cripple, stultify
deprive of the use of a limb, especially a leg
"The accident has crippled her for life"
cripple, lame