Etymograph

English

diffusive

Diffusive comes from Latin diffusivus ‘tending to spread’, from diffundō ‘diffuse, disperse’, and ultimately from Proto-Indo-European *ǵʰewd- ‘to pour’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰewd-‘to pour’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ǵʰunédtireconstructed
  3. Proto-Italicc. 1500–700 BCE*hundō‘to pour out’reconstructed
  4. Latinc. 75 BCE–200 CEfundō‘to pour out, shed’
  5. Latin, derivedc. 75 BCE–200 CEdiffundōas diffundere‘diffuse, disperse’
  6. Latin, derivedc. 75 BCE–200 CEdiffusivus‘tending to spread’
  7. Englishearliest quotation 1791diffusive

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*ǵʰewd-‘to pour’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ǵʰunédtireconstructed
  3. Proto-Italicc. 1500–700 BCE*hundō‘to pour out’reconstructed
  4. Latinc. 75 BCE–200 CEfundō‘to pour out, shed’
  5. Latin, derivedc. 75 BCE–200 CEdiffundōas diffundere‘diffuse, disperse’
  6. Latin, derivedc. 75 BCE–200 CEdiffusivus‘tending to spread’
  7. Englishearliest quotation 1791diffusive

Earliest quotation: 1791, Edward Gibbon, Memoirs of My Life: “I can never forget the delight with which that…”

Linked words

through Proto-Indo-European *ǵʰewd- ‘to pour’

yet, refuse, gut, font, fuse, effusive, 40 more

through Proto-Italic *hundō ‘to pour out’

confused, foundry, infusion, fondue, perfusion, profusion, effusion, 36 more

through Latin fundō ‘to pour out, shed’

foundation, founder, fundamental, refund, confusion, fusion, confuse, funnel, confound, infuse, 46 more

Today it means

adj That is spread or dispersed across a wide area or among a large number of people.

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

Etymograph / Proto-Indo-European *ǵʰewd- / diffusive