invalid1
/
ˈɪnvəlɪd/
n.
a person made weak or disabled by illness or injury.
v.
(invalids, invaliding, invalided)
remove (someone) from active military service because of injury or illness.
▸disable by injury or illness.
Derivative
Etymology
C17 (as adj. in the sense ‘infirm or disabled’): a special sense of invalid2, with a change of pronunc.
invalid2
/
ɪnˈvalɪd/
adj.
- not valid or officially recognized.
- not true because based on erroneous information or unsound reasoning.
Derivative
Etymology
C16 (earlier than valid): from L. invalidus, from in- ‘not’ + validus (see valid).
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