Invalid, in-val'-id, a

Nuttall's Standard Dictionary of the English Language · 1890 · p. 104

not valid; of no force, weight, or cogency; void; null.

Bu kavram başka kaynaklarda da geçiyor

Val — French-English Dictionary of Military Terms (1918)
val — Hawkins' Electrical Dictionary (1915)
val — Chamber's Twientieth Century Dictionary (1908)
Idæa — A Classical Dictionary (1904)
Valè — A Concise Dictionary of Middle English from A.D. 1150 to 1580 (1889)

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