Etymologically

Etymology and origin of the Latin word expansio

Confidence
Established
Formation
Derivation
First attested
Jerome, c. 400
Ultimate origin
Latin expandō
Etymology tree
inherited borrowed derived
Latin expando
English expand
Latin expansio
French expansion
English expansion

Forms

expānsiō f (genitive expānsiōnis); third declension[1]

Etymology

It is from Latin expandō (“to spread out”) + -tiō,[1][2][3] an action noun formed on the participle ⟨expānsus⟩.[4]

Earliest recorded meaning

It is a Late Latin word.[5][6] Jerome, commenting on Ezekiel, speaks of “not only the stretching out but the expansio of the hand of God”.[2][7][3]

Semantic evolution

In Late Latin it is the spreading out of the hands or the stretching of the body, a medical use in Caelius Aurelianus,[3][5] and Christian writers used it of the arms of Christ spread on the cross.[3][6]

Medieval writers widened it to the spreading of branches or wings,[8] to extension in space in philosophy,[6][8] to an expanse or an extent,[6] and to the range of someone's authority.[8] It is the source of French expansion, Italian espansione and Spanish expansión,[1][7] and English expansion came from French in the 1610s.[4]

Timeline

  • c. 383–419/420 – Jerome uses it of the hand of God.[2][9]
  • 5th century – Caelius Aurelianus uses it of the stretching of the body.[3][9]
  • 13th century – Albertus Magnus uses it of the spreading of branches.[8][9]
  • 1610s – English borrows French expansion.[4]

Meanings

Noun

  1. A spreading out, stretching out (of the hands or the body).[3][10][5]
  2. (Ecclesiastical Latin) expansion.[11]
  3. (Medieval Latin) extension in space; an expanse, an extent.[6][8]
  4. (Medieval Latin) The range of a person's power or influence.[8]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d e f Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d e Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  7. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b c d e f Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  9. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  10. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  11. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson

Borrowed into

Cite this entry

“Expansio.” Etymologically, 23 Oct. 2026, etymologically.com/la/expansio. Accessed 23 Oct. 2026.

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