bandy leg vs disability

bandy leg and disability both are nouns.

Word	Noun	Adjective	Verb	Adverb
bandy leg	Yes	No	No	No
disability	Yes	No	No	No

As nouns, disability is a hypernym of bandy leg; that is, disability is a word with a broader meaning than bandy leg:

bandy leg: a leg bowed outward at the knee (or below the knee)
disability: the condition of being unable to perform as a consequence of physical or mental unfitness

Other hypernyms of bandy leg include leg, disablement, handicap, impairment.

bandy leg (noun)	disability (noun)
a leg bowed outward at the knee (or below the knee)	the condition of being unable to perform as a consequence of physical or mental unfitness