~ 1 [ 'ɪnvəlɪd ]
■ noun a person made weak or disabled by illness or injury.
■ verb ( ~s , ~ing , ~ed ) remove (someone) from active military service because of injury or illness.
↘disable by injury or illness.
Derivatives
~ism noun
Origin
C17 (as adjective in the sense 'infirm or disabled'): a special sense of ~ 2 , with a change of pronunciation
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~ 2 [ ɪn'valɪd ]
■ adjective
1》 not valid or officially recognized.
2》 not true because based on erroneous information or unsound reasoning.
Derivatives
~ly adverb
Origin
C16 (earlier than valid ): from L. ~us , from in- 'not' + validus (see valid ).