Etymologically

influentia

Etymology and origin of the Latin word influentia

Confidence
Established
Formation
Derivation
First attested
873, Annales Xantenses
Ultimate origin
Latin īnfluō
Etymology tree
inherited borrowed derived
Latin influo
Latin influentia
From the same root
English influenza ← influentia

Forms

īnfluentia f (genitive īnfluentiae); first declension[1]

Etymology

It is from Latin īnfluō (“to flow in”), a Medieval Latin noun[2] formed from its present participle īnfluēns with the suffix -ia.[1][3]

Earliest recorded meaning

The MLW finds it first in the Annales Xantenses under the year 873, of a flood of waters in which many people perished with their buildings.[4]

Semantic evolution

The literal sense “inflow” (of water, of light) stayed in use,[2][4] and Du Cange quotes influentiae aquārum for floods as late as 1405.[5] In 13th-century philosophy and theology it became the outflowing power of a higher cause on a lower one: Albert the Great says that what the Arabs call influentia the Greek philosophers call procession.[4] Above all it was the power streaming from the stars on earthly things, and divine influence;[2][6] Petrarch and Boccaccio write of heavenly influentiae.[6] English influence was first an astrological term in the late 14th century, through Old French.[7] In New Latin it also means influenza,[1] a word English borrowed from Italian in 1743.[7]

Timeline

  • 873 – The Annales Xantenses use it of a flood.[4]
  • 1169–1184 – William of Tyre uses it.[3]
  • c. 1240 – Robert Grosseteste writes of higher things pouring their influences on lower ones.[2]
  • 13th century – Albert the Great uses it of the action of a first cause.[4][3]
  • late 14th century – English influence is borrowed through Old French, as an astrological term.[7]

Meanings

Noun

  1. (Medieval Latin) A flowing in, inflow (of water or light); a flood.[2][4][5]
  2. (Medieval Latin) influence, especially the power of the stars or of God acting on things.[2][4][8][6]
  3. (New Latin) influenza.[1]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f 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
  3. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c d e f g Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  5. ^ a b du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre
  6. ^ a b c Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de
  7. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  8. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill

Descendants

Cite this entry

“Influentia.” Etymologically, 23 Oct. 2026, etymologically.com/la/influentia. Accessed 23 Oct. 2026.

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