Etymologically

Etymology and origin of the Latin word furens

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin (furō)

Forms

furēns (genitive furentis); third-declension one-termination adjective[1][2] Virgil has the genitive plural furentum.[1]

Etymology

It is the present participle of furō (“to rage, be mad”), used as an adjective.[1][3] The origin of the verb is unclear: de Vaan finds none of the many proposals convincing, and the OLD doubtfully compares Old Church Slavonic бура (burja, “storm”).[4][1]

Earliest recorded meaning

The OLD's first example is Cicero, of the “frenzied and flighty attacks” of an opponent.[1][3]

Semantic evolution

Used of persons it means mad, out of one's mind, and of actions and passions frenzied, as Catullus' “raging frenzy” and Phaedrus' “onrush of furious anger”.[1] Köbler records it as an adjective in Claudian and in medieval authors such as Bede and Hrabanus Maurus.[3]

Timeline

  • 81–43 BC – Cicero of frenzied attacks.[1][3]
  • 81/79–52/50 BC – Catullus of raging frenzy.[1][3]
  • c. 400 AD – Claudian.[3]

Meanings

Adjective

  1. Mad, raging, frenzied, (as noun) a madman.[1][2]

References

  1. ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  2. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
Cite this entry

“Furens.” Etymologically, 19 Oct. 2026, etymologically.com/la/furens. Accessed 19 Oct. 2026.

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