Etymograph

English

evolvent

Evolvent comes from Latin ēvolvēns ‘unrolling’, from volvō ‘roll’, and ultimately from Proto-Indo-European *welH-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*welH-1‘to roll, to undulate’reconstructed
  2. Proto-Italicc. 1500–700 BCE*wolwō1reconstructed
  3. Latinc. 75 BCE–200 CEvolvō1‘roll’
  4. Latinc. 75 BCE–200 CEēvolvō2‘to unroll’
  5. Latinc. 75 BCE–200 CEēvolvēns2‘unrolling’present participle of ēvolvō
  6. Englishtodayevolvent2

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin evolvo
  2. 2 Wiktionary, English evolvent

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*welH-Wiktionary, Latin evolvo‘to roll, to undulate’reconstructed
  2. Proto-Italicc. 1500–700 BCE*wolwōWiktionary, Latin evolvoreconstructed
  3. Latinc. 75 BCE–200 CEvolvōWiktionary, Latin evolvo‘roll’
  4. Latinc. 75 BCE–200 CEēvolvōWiktionary, English evolvent‘to unroll’
  5. Latinc. 75 BCE–200 CEēvolvēnsWiktionary, English evolvent‘unrolling’present participle of ēvolvō
  6. EnglishtodayevolventWiktionary, English evolvent

Linked words

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

well, walk, wall, valve, vulgar, waltz, helix, divulge, wale, vagrant, gauche, vulgate, iliac, ilium, valise, valvular, 71 more

through Proto-Italic *wolwō

convolutional, 40 more

through Latin volvō ‘roll’

volume, revolution, vault, involve, revolt, convoluted, devolution, voluminous, vulva, revolve, convolution, devolve, involution, voluble, 41 more

through Latin ēvolvō ‘to unroll’

evolution, 1 more

Today it means

noun The involute of a curve.

Sources

Sources: Wiktionary, “evolvent”; the older steps come from the Wiktionary entry for Latin evolvo. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

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

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