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invalid

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invalid¹

  • /ɪnˈvæl.ɪd/

Where it comes from

Etymology tree

Proto-Indo-European *né

Proto-Indo-European *n̥-

Proto-Italic *n̥-

Latin in-bor.

Middle English in-

English in-

Proto-Indo-European *h₂welh₁-

Proto-Indo-European *-éh₁ti

Proto-Indo-European *-yeti

Proto-Indo-European *-éh₁yeti

Proto-Indo-European *h₂wl̥h₁éh₁yeti

Proto-Italic *walēō

Latin valeō

Proto-Indo-European *dʰeh₁-der.

Proto-Italic *-iðos

Latin -idus

Latin validusder.

Middle French validebor.

English valid

English invalid

From in- + valid.

adjective more invalid · most invalid

  1. Not valid; not true, correct, acceptable, or appropriate. Your argument is invalid because it uses circular reasoning.

invalid²

  • /ˈɪn.və.lɪd/
  • /ˈɪn.vəˌliːd/

Where it comes from

Etymology tree

Proto-Indo-European *né

Proto-Indo-European *n̥-

Proto-Italic *n̥-

Latin in-

Proto-Indo-European *h₂welh₁-

Proto-Indo-European *-éh₁ti

Proto-Indo-European *-yeti

Proto-Indo-European *-éh₁yeti

Proto-Indo-European *h₂wl̥h₁éh₁yeti

Proto-Italic *walēō

Latin valeō

Proto-Indo-European *dʰeh₁-der.

Proto-Italic *-iðos

Latin -idus

Latin validus

Latin invalidusbor.

Middle French invalidebor.

English invalid

Borrowed from Middle French invalide, from Latin invalidus (“infirm, weak”), from in- (“not”) + validus (“strong”).

noun invalids

  1. dated, offensive, sometimes Any person with a disability or illness.
  2. dated, offensive, sometimes A person who is confined to home or bed because of illness, disability or injury; one who is too sick or weak to care for themselves.
  3. archaic A disabled member of the armed forces; one unfit for active duty due to injury.

adjective

  1. not comparable Suffering from disability or illness. Invalidism therefore referred to a lack of power as well as a tendency toward illness. It is for this reason that I choose to discuss the invalid woman rather than just the ill one.
  2. not comparable Intended for use by an invalid.

verb invalids · invaliding · invalided

  1. UK, transitive To exempt from (often military) duty because of injury or ill health. He was invalided home after the car crash.
  2. transitive To make invalid or affect with disease.

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