Etymologically

Etymology and origin of the Latin word viscosus

Confidence
Established
Formation
Derivation
First attested
200s Cetius Faventinus More words from the 2nd century
Ultimate origin
Latin viscum
Etymology tree
inherited borrowed derived
Latin vīscum
Latin viscōsus
English viscous
From the same root
Latin visco ← vīscum

Pronunciation

  • Classical: [wɪsˈkoː.sʊs][1]
  • Ecclesiastical: [visˈkɔː.s̬us][1]

Forms

viscōsus (feminine viscōsa, neuter viscōsum); first/second-declension adjective[1]

Etymology

It is formed from Latin viscum + -ōsus, from viscum (“mistletoe; birdlime”).[1][2] De Vaan takes viscum to be either an Indo-European word or a European loanword for the mistletoe or another fruit-bearing tree.[3] His tentative reconstruction is Proto-Italic *wisko-.[3]

Earliest recorded meaning

Köbler's first source is the 3rd-century architectural writer Cetius Faventinus.[4]

Semantic evolution

In Prudentius it means smeared with birdlime, in a figurative passage,[5][6] and Palladius and Theodorus Priscianus use it more generally of sticky, viscous matter, such as a fatty fluid.[5][7]

Medieval writers on medicine and natural science kept the sense of sticky or glutinous, also figuratively, and speak for example of the viscous substance of the brain.[2] Conte derives Italian vischioso and viscoso from the Late Latin word,[8] and English viscous (late 14th century) comes from it partly through Anglo-French.[9]

Timeline

  • 3rd century AD – Cetius Faventinus uses it.[4]
  • 348/49–c. 413 AD – Prudentius uses it figuratively, of something smeared with birdlime.[5][6][4]
  • end of the 4th or beginning of the 5th century AD – Palladius uses it of sticky matter.[5][6][4]
  • late 14th century – English borrows it as viscous.[9]

Meanings

Adjective

  1. (Late Latin) Smeared with birdlime.[5][7][8]
  2. (Late Latin) Sticky, viscous, glutinous.[5][7][2]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b 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 c d e f Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  8. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Viscosus.” Etymologically, 7 Nov. 2026, etymologically.com/la/viscosus. Accessed 8 Nov. 2026.

Last edited on . ·