Etymograph

English

expansion

Expansion comes from Latin expandō ‘to spread something out’, and goes back to Proto-Indo-European *peth₂-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-‘to spread out’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ptnéh₂tireconstructed
  3. Proto-Italicc. 1500–700 BCE*pandō‘to spread’reconstructed
  4. Latinc. 75 BCE–200 CEpandō‘spread’
  5. Latin, derivedc. 75 BCE–200 CEexpandō‘to spread something out’
  6. Latin, derivedc. 75 BCE–200 CEexpānsiō
  7. Frenchc. 1600–presentexpansion
  8. Englishearliest quotation a. 1804same form

attested reconstructed ? uncertain or disputed

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*peth₂-‘to spread out’reconstructed
  2. Proto-Indo-European, derivedc. 4500–2500 BCE*ptnéh₂tireconstructed
  3. Proto-Italicc. 1500–700 BCE*pandō‘to spread’reconstructed
  4. Latinc. 75 BCE–200 CEpandō‘spread’
  5. Latin, derivedc. 75 BCE–200 CEexpandō‘to spread something out’
  6. Latin, derivedc. 75 BCE–200 CEexpānsiō
  7. Frenchc. 1600–presentexpansion
  8. Englishearliest quotation a. 1804same form

Earliest quotation: a. 1804, James Beattie, The Beginning of the First Book of Lucretius: “Mother of mighty Rome's imperial line, / Delight of…”

Equivalent to expand + -sion

Proto-Indo-European *peth₂- ‘to spread out’

…

Latin pandō ‘to spread’

Latin expandō ‘to spread out’

Anglo-Norman espaundre

Middle English expanden

English expand

Linked words

through Proto-Indo-European *peth₂- ‘to spread out’

mile, repeat, compete, pen, helicopter, passage, petition, competitor, feather, symptom, perpetual, compass, impetus, perpetuate, trespass, perpetuity, pennant, passable, impetuous, petulant, patina, patella, pinion, pata, penna, petulance, 81 more

through Proto-Italic *pandō ‘to spread’

patent, 10 more

through Latin pandō ‘spread’

pass, 6 more

through Latin expandō ‘to spread something out’

spawn, 3 more

Today it means

noun An act, process, or instance of expanding.

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

Etymograph / Proto-Indo-European *peth₂- / expansion