Etymologically

virulentus

Etymology and origin of the Latin word virulentus

Confidence
Established
Formation
Derivation
First attested
c. 165 Aulus Gellius More words from the 2nd century
Ultimate origin
Latin vīrus
Etymology tree
inherited borrowed derived
Latin vīrus
English virus
Italian virus
Spanish virus
Latin vīrulentus
English virulent
From the same root
English viral ← vīrus
English coronavirus ← virus

Pronunciation

  • Classical: [wiː.rʊˈɫɛn.tʊs][1]
  • Ecclesiastical: [vi.ruˈlɛn.tus][1]

Forms

vīrulentus (feminine vīrulenta, neuter vīrulentum, superlative vīrulentissimus, adverb vīrulentē); first/second-declension adjective[1]

Etymology

It is formed from Latin vīrus (“poison”) + -ulentus (“full of”).[2][1] De Vaan traces vīrus to Proto-Italic *weis-o- (“poison”) and Proto-Indo-European *u̯eis (“poison”).[3]

Earliest recorded meaning

It is first found in Aulus Gellius,[4] who uses it of venomous snakes.[2][5]

Semantic evolution

Gellius also uses it of a speech full of bitter abuse: in oratione illa saeva et virulenta, qua Timarchum accusabat, “in that fierce and venomous speech in which he accused Timarchus”.[2] Leo the Great has the figurative sense too.[6] The superlative virulentissimus appears in a work on friendship, which Georges cites under Cassiodorus and Gaffiot under Peter of Blois.[7][8]

British medieval writers used it of what is poisonous or noxious, often figuratively of heresy, malice or speech.[9] English took it over as virulent, first of wounds and ulcers full of poisonous matter.[10]

Timeline

  • c. 165 AD – Aulus Gellius uses it of venomous snakes and of an abusive speech.[2][4]
  • 440–461 AD – Leo the Great uses it figuratively.[6][4]
  • 639–709 AD – Aldhelm uses it figuratively of a wound to chastity.[9][4]
  • c. 1400 – English borrows it as virulent.[10]

Meanings

Adjective

  1. Full of poison, venomous (of snakes).[2][5][7]
  2. (figurative) Full of bitter abuse, virulent (of speech).[2][6]
  3. (Medieval Latin) Poisonous, noxious, also figuratively.[9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  7. ^ a b Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  8. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  9. ^ a b c 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
  10. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Virulentus.” Etymologically, 13 Nov. 2026, etymologically.com/la/virulentus. Accessed 13 Nov. 2026.

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