Etymograph

English

leavenous

Leavenous comes from Middle English levayn ‘leaven’, from Latin levis ‘light, not heavy’, and perhaps ultimately from Proto-Indo-European *h₁lengʷʰ-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₁lengʷʰ-1‘lightweight’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₁léngʰus2‘lightweight’reconstructed
  3. Proto-Italicc. 1500–700 BCE*leɣʷis3‘light’reconstructed
  4. Latinc. 75 BCE–200 CElevis3‘light, not heavy’
  5. Latinc. 75 BCE–200 CElevō3
  6. Vulgar Latinc. 100–700 CE*levāmen3reconstructed
  7. Old Frenchc. 842–1400levain3
  8. Middle Englishc. 1150–1500levayn3‘leaven’
  9. English1500–presentleaven3
  10. Englishearliest quotation 1649leavenous3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Proto-Indo-European *h₁léngʰus
  2. 2 Wiktionary, Proto-Italic *leɣʷis
  3. 3 Wiktionary, English leavenous
  4. Earliest quotation in Wiktionary’s entry: 1649, John Milton, London: […] Matthew Simmons: “For our Religion where was there a more ignorant,…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₁lengʷʰ-Wiktionary, Proto-Indo-European *h₁léngʰus‘lightweight’uncertain
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₁léngʰusWiktionary, Proto-Italic *leɣʷis‘lightweight’reconstructed
  3. Proto-Italicc. 1500–700 BCE*leɣʷisWiktionary, English leavenous‘light’reconstructed
  4. Latinc. 75 BCE–200 CElevisWiktionary, English leavenous‘light, not heavy’
  5. Latinc. 75 BCE–200 CElevōWiktionary, English leavenous
  6. Vulgar Latinc. 100–700 CE*levāmenWiktionary, English leavenousreconstructed
  7. Old Frenchc. 842–1400levainWiktionary, English leavenous
  8. Middle Englishc. 1150–1500levaynWiktionary, English leavenous‘leaven’
  9. English1500–presentleavenWiktionary, English leavenous
  10. Englishearliest quotation 1649leavenousWiktionary, English leavenous. Earliest quotation in Wiktionary’s entry: 1649, John Milton, London: […] Matthew Simmons: “For our Religion where was there a more ignorant,…”

Linked words

through Proto-Indo-European *h₁lengʷʰ- ‘lightweight’

light, lung, obliterate, 11 more

through Latin levis ‘light, not heavy’

alleviate, oblivion, levant, oblivious, allege, leger, levity, levee, levitation, levitate, 24 more

through Latin levō

relief, relevant, elevator, elevation, relieve, lever, elevate, 20 more

through English leaven

unleavened, 4 more

Today it means

adj Containing leaven; leavened.

Sources

Sources: Wiktionary, “leavenous”; the older steps come from the Wiktionary entries for Proto-Indo-European *h₁léngʰus, Proto-Italic *leɣʷis. 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 *h₁lengʷʰ- / leavenous

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