Etymologically

Etymology and origin of the Latin word effusio

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin fundō
Etymology tree
inherited borrowed derived
Latin fundo
Latin effundo
Latin effusio
From the same root
Latin defundo ← fundo
Latin fundatus ← fundo
Latin interfundo ← fundo
Latin offundo ← fundo
Latin perfundo ← fundo
Latin suffundo ← fundo
Latin superfundo ← fundo
Latin transfundo ← fundo

Pronunciation

  • Classical: [ɛfˈfuː.si.oː][1]
  • Ecclesiastical: [efˈfuː.s̬i.o][1]

Forms

effūsiō f (genitive effūsiōnis); third declension[1]

Etymology

It is from Latin effundō (“to pour out, shed”) + -tiō, an action noun.[2][1][3] That verb is a compound of ex- (“out”) and fundō1 (“to pour”),[4] which de Vaan traces to Proto-Indo-European *ǵhu-n-d- (“to pour”).[5]

Earliest recorded meaning

Lewis & Short call it a Ciceronian word;[6] Cicero writes that cuttlefish protect themselves by squirting ink, ātrāmentī effūsiōne, and uses it of the fluidity of water.[2][6][7]

Semantic evolution

Cicero also uses it of crowds streaming out of towns, of lavish spending, often in the plural pecūniārum effūsiōnēs, and of unrestrained feeling, effūsiō animī in laetitiā, an outpouring of the mind in joy.[2][6] The TLL finds it once in Livy and in Vitruvius, Columella and Pliny the Younger, and more often later.[3] Vitruvius uses it of rays sent out from the eyes,[7] and the Vulgate of the shedding of blood, effūsiō sanguinis.[6][7] In Ecclesiastical Latin it is a pouring forth or shedding,[8] and in medieval Latin the shedding of blood, childbirth,[9] a flow of tears or other bodily fluids,[10] a downpour, a spilling or leakage, and in philosophy an emanation.[11] English effusion comes from it, partly through Old French.[4]

Timeline

  • 81–43 BC – Cicero uses it of a cuttlefish's ink, of crowds, of lavish spending and of feeling.[2][6][12]
  • c. 84–c. 25 BC – Vitruvius uses it of rays sent out from the eyes.[7][12]
  • 390–406 AD – The Vulgate uses it of the shedding of blood.[6][12]
  • c. 1400 – English effusion is recorded.[4]

Meanings

Noun

  1. A pouring out, a discharge of fluid; an emission of light or rays.[2][6][7]
  2. An unrestrained display of feeling.[2][6]
  3. A streaming out of crowds.[2][6]
  4. Lavish spending, prodigality.[2][6]
  5. (Ecclesiastical Latin) A shedding, especially of blood.[8][9]
  6. (Medieval Latin) Childbirth.[9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c d e f g h i j Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c d e Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  9. ^ a b c Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  10. ^ Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  11. ^ 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
  12. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Effusio.” Etymologically, 20 Oct. 2026, etymologically.com/la/effusio. Accessed 23 Oct. 2026.

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