Etymograph

English

leavenous

Leavenous comes from Middle English levayn ‘leaven’, from Latin levis ‘light, not heavy’, and ultimately from Proto-Indo-European *h₁léngʰus.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₁léngʰus‘lightweight’reconstructed
  2. Proto-Italicc. 1500–700 BCE*leɣʷis‘light’reconstructed
  3. Latinc. 75 BCE–200 CElevis‘light, not heavy’
  4. Latin, derivedc. 75 BCE–200 CElevō
  5. Vulgar Latinc. 100–700 CE*levāmenreconstructed
  6. Old Frenchc. 842–1400levain
  7. Middle Englishc. 1150–1500levayn‘leaven’
  8. English1500–presentleaven
  9. Englishearliest quotation 1649leavenous

attested reconstructed ? uncertain or disputed

Earlier history uncertain.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₁léngʰus‘lightweight’reconstructed
  2. Proto-Italicc. 1500–700 BCE*leɣʷis‘light’reconstructed
  3. Latinc. 75 BCE–200 CElevis‘light, not heavy’
  4. Latin, derivedc. 75 BCE–200 CElevō
  5. Vulgar Latinc. 100–700 CE*levāmenreconstructed
  6. Old Frenchc. 842–1400levain
  7. Middle Englishc. 1150–1500levayn‘leaven’
  8. English1500–presentleaven
  9. Englishearliest quotation 1649leavenous

Earliest quotation: 1649, John Milton, London: […] Matthew Simmons: “For our Religion where was there a more ignorant,…”

A compound of leaven + -ous

Proto-Indo-European *h₁léngʰus ‘lightweight’

…

Latin levō ‘raise’

Vulgar Latin *levāmen

Old French levain

Middle English levayn

English leaven

Linked words

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

light, lung, obliterate, 12 more

through Latin levis ‘light, not heavy’

alleviate, oblivion, levant, oblivious, allege, leger, levity, levee, levitation, levitate, 25 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.

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

Etymograph / Proto-Indo-European *h₁léngʰus / leavenous