Etymograph

English

invalidate

Invalidate comes from Middle French invalide, and goes back to Proto-Indo-European *h₂welh₁-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂welh₁-root as named · steps between not traced
  2. Middle Frenchc. 1400–1600invalide
  3. Middle French, derivedc. 1400–1600invalider
  4. Englishearliest quotation 1978invalidate

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂welh₁-root as named · steps between not traced
  2. Middle Frenchc. 1400–1600invalide
  3. Middle French, derivedc. 1400–1600invalider
  4. Englishearliest quotation 1978invalidate

Earliest quotation: 1978, 1976, Leszek Kołakowski: “The multiplicity of moral opinions is an empirical fact…”

Equivalent to in- + validate

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Proto-Indo-European *h₂welh₁-

Medieval Latin validātus ‘to validate’

English validate

first attested First attested in 1649 (as stated in the etymology)

The story

First attested in 1649; borrowed from Middle French invalider, from invalide + -er.

Linked words

through Proto-Indo-European *h₂welh₁-

wild, value, equivalent, wool, velvet, valid, avail, valuation, vale, wield, fluff, flannel, vail, cuckold, valiant, valour, velour, woll, lanolin, valorous, 43 more

Today it means

verb To make invalid (especially in to contract law)

Language periods are conventional ranges, not dates for this word.

Etymograph / Proto-Indo-European *h₂welh₁- / invalidate