Etymologically

Etymology and origin of the Latin word lunaris

Confidence
Established
Formation
Derivation
First attested
116–27 BC, Varro
Ultimate origin
Latin lūna
Etymology tree
inherited borrowed derived
Latin luna
French lune
Italian luna
Latin lunaris
English lunar
From the same root
English lunatic ← luna
Latin lunaticus ← luna
Latin lunatus ← luna
French lunette ← lune

Pronunciation

  • Classical: [ɫuːˈnaː.rɪs][1]
  • Ecclesiastical: [luˈnaː.ris][1]

Forms

lūnāris (neuter lūnāre); third-declension two-termination adjective[1]

Etymology

It is from Latin lūna (“moon”) + -āris.[2][1][3]

Earliest recorded meaning

Köbler dates it from Varro, who speaks of lunar days and hours.[4][5] Cicero uses it in the Dream of Scipio of the course of the moon, the lowest of the heavenly spheres, which gives the deepest sound: hic lūnāris atque īnfimus.[3][5]

Semantic evolution

It meant what belongs to the moon: Ovid speaks of the moon's horns and horses,[5] Seneca of its star and its orbit,[6][3] Pliny the Elder of the lunar circle,[3] and Vitruvius of the lunar month.[6]

Medieval writers used it in reckoning time: the lunar month and year, the saltus lūnāris (the day dropped from the moon's reckoning at the end of a cycle) and the nineteen-year lunar cycle.[7] It also came to mean monthly or lasting a month,[8][7] and morbus lūnāris was menstruation.[7] As a noun it named a dependant who owed labour service on Mondays.[8][4] English took lunar in the early 15th century, in the sense “crescent-shaped”, and used it of the moon from the 1620s.[9]

Timeline

  • 116–27 BC – Varro speaks of lunar days.[5][4]
  • 81–43 BC – Cicero uses it of the course of the moon.[3][4]
  • 43 BC–18 AD – Ovid uses it of the horns of the moon.[5][4]
  • 1st third of the 8th century AD – Bede uses it in his work on the reckoning of time.[7][4]
  • 844–864 – A charter uses it of a dependant owing Monday service.[4][8]
  • early 15th century – English borrows lunar.[9]

Meanings

Adjective

  1. Of or relating to the moon, lunar.[2][5]
  2. Like the moon, crescent-shaped.[6]
  3. (Medieval Latin) Monthly; lasting a month.[8][7]

Noun

  1. (Medieval Latin) A dependant owing labour service on Mondays.[8][4]

Word family

  • sublūnāris

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f g h Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ a b c d e 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
  8. ^ a b c d e Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Borrowed into

Cite this entry

“Lunaris.” Etymologically, 23 Oct. 2026, etymologically.com/la/lunaris. Accessed 23 Oct. 2026.

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