"incapacitated," 1630s, past-participle adjective from disable. Earlier it meant "legally disqualified" (mid-15c.).
Entries linking to disabled
disable v.
"render unable, weaken or destroy the capability of," late 15c., from dis- "do the opposite of" + ablen (v.) "to make fit" (see able). Related: Disabled; disabling. Earlier in the same sense was unable (v.) "make unfit, render unsuitable" (c. 1400).