Etymologically

unicornis

Etymology and origin of the Latin word unicornis

Confidence
Established
Formation
Compound
First attested
Pliny the Elder
Ultimate origin
Latin (ūnus,cornū)
Etymology tree
inherited borrowed derived
Latin unus
Latin unicornis
English unicorn
Latin unicus
English unique
Latin universus

Pronunciation

  • IPA (Classical): [uː.nɪˈkɔr.nɪs][1]
  • IPA (Ecclesiastical): [u.niˈkɔr.nis][1]

Forms

ūnicornis (neuter ūnicorne); third-declension two-termination adjective[1]

Etymology

It is a compound, from Latin ūnus (“one”) + cornū (“horn”), with the adjective ending -is.[2][3][4] It renders Greek Ancient Greek μονόκερως (monókerōs, “one-horned”).[5]

Earliest recorded meaning

Pliny the Elder, in his Natural History, mentions one-horned Indian oxen.[3][6] Köbler dates him 23/24–79 AD.[4]

Semantic evolution

It meant having a single horn, as Pliny's Indian oxen and Solinus' ox, and Tertullian calls the rhinoceros one-horned.[2][3][5] As a noun Tertullian and the Psalms of the Vulgate use it of a one-horned beast, the unicorn.[5][6][3]

In medieval Latin it was the unicorn.[7] British writers used it also figuratively, beside forms like unicornuus and the Greek words monoceros and rhinoceros.[8] English unicorn is recorded in the early 13th century through Old French unicorne.[9]

Timeline

  • 23/24–79 AD – Pliny the Elder uses it of oxen.[3][4]
  • c. 160–220 AD – Tertullian uses it of the rhinoceros.[3][4]
  • 390–406 AD – The Vulgate Psalms use it of a unicorn.[6][4]
  • early 13th century – English unicorn is recorded.[9]

Meanings

Adjective

  1. One-horned.[2][1]

Noun

  1. A one-horned beast; a rhinoceros; a unicorn.[5][1]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ 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
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Descendants

Cite this entry

“Unicornis.” Etymologically, 15 Oct. 2026, etymologically.com/la/unicornis. Accessed 16 Oct. 2026.

Last edited on . ·