Etymograph

English

deconvolution

Deconvolution comes from Latin convolūtus ‘coiled’, from convolvō ‘to roll together, up or around’, and ultimately from Proto-Indo-European *welH-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*welH-‘to roll, to undulate’reconstructed
  2. Proto-Italicc. 1500–700 BCE*wolwōreconstructed
  3. Latinc. 75 BCE–200 CEvolvō‘to roll, tumble’
  4. Latin, derivedc. 75 BCE–200 CEconvolvō‘to roll together, up or around’
  5. Latin, derivedc. 75 BCE–200 CEconvolūtus‘coiled’
  6. English1500–presentconvolution
  7. Englishtodaydeconvolution

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*welH-‘to roll, to undulate’reconstructed
  2. Proto-Italicc. 1500–700 BCE*wolwōreconstructed
  3. Latinc. 75 BCE–200 CEvolvō‘to roll, tumble’
  4. Latin, derivedc. 75 BCE–200 CEconvolvō‘to roll together, up or around’
  5. Latin, derivedc. 75 BCE–200 CEconvolūtus‘coiled’
  6. English1500–presentconvolution
  7. Englishtodaydeconvolution

A compound of de- + convolution

Latin dē ‘of; from’

English de-

Proto-Indo-European *welH- ‘to roll, to undulate’

Proto-Italic *wolwō

Latin volvō ‘to roll, tumble’

Latin convolvō ‘to roll together, up or around’

Latin convolūtus ‘to roll together’

English convolution

Linked words

through Proto-Indo-European *welH- ‘to roll, to undulate’

well, walk, wall, valve, vulgar, waltz, helix, divulge, vagrant, wale, gauche, vulgate, iliac, ilium, valvular, valise, 72 more

through Proto-Italic *wolwō

revolve, devolve, devolution, 40 more

through Latin volvō ‘to roll, tumble’

volume, vault, involve, revolution, evolution, evolve, revolt, vulva, voluminous, voluble, involution, 43 more

through Latin convolūtus ‘coiled’

convoluted, 7 more

through English convolution

convolutional, 3 more

Today it means

noun The inversion of a convolution equation; does not normally have unique solution

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

Etymograph / Proto-Indo-European *welH- / deconvolution