- Confidence
- Established
- Formation
- Inherited
- First attested
- Plautus
- Ultimate origin
- Proto-Indo-European (*kʷétuores)
Pronunciation
Forms
quadrāgintā (indeclinable)[1]
Etymology
It continues Proto-Indo-European *kʷt(u)r-dḱmt- (“forty”), from Proto-Indo-European *kʷétuores (“four”), the source of quattuor.[2][1] De Vaan reports Schrijver's view that quadr- arose by voicing of /t/ in clusters, as in this numeral, and that the long ā is phonetic, from *kʷadr-Hkmt- as Kortlandt proposed.[2] Cognate with Ancient Greek τετρώκοντα (tetrṓkonta) and Sanskrit चत्वारिंशत् (catvāriṃśát).[1]
Earliest recorded meaning
De Vaan dates it from Plautus onwards, and Plautus has forty-four minae in the Mostellaria.[2][3] Köbler dates Plautus c. 250–184 BC.[4]
Semantic evolution
It is the indeclinable numeral forty, as Cicero's man forty years old and Livy's forty-five.[3][5] Medieval writers used it of the forty days of Lent.[6]
Its descendants include French quarante and French quarantaine.[4] Through Italian quaranta giorni “forty days” it gave English quarantine in the 1660s, the period a ship was kept isolated.[7]
Timeline
- c. 250–184 BC – Plautus uses it.[2][4]
- 81–43 BC – Cicero uses it of a man forty years old.[3][4]
- 1660s – English quarantine is recorded.[7]
Meanings
Numeral
Word family
- quadrāgēnī
- quadrāgēsimus
- quadrāgiēns
Related words
- quattuor
- English quarantine
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b 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
- ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
Descendants
- English quarantine
Cite this entry
“Quadraginta.” Etymologically, 15 Oct. 2026, etymologically.com/la/quadraginta. Accessed 16 Oct. 2026.
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