Etymology and origin of the Latin word concubitus
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Proto-Italic (*kumbe/o-)
Etymology tree
Forms
concubitus m (genitive concubitūs); fourth declension[1]
Etymology
It is from Latin concumbō (“to lie together”) + -tus, a noun of action.[2][3][1] The verb is con- and -cumbō, which de Vaan traces to Proto-Italic *kumbe/o- (“to lie down”); since the root has /b/ and is found only in Italic and Celtic, its Proto-Indo-European origin is uncertain.[4] Cognate with Faliscan cupat (“lies”) and Middle Welsh kyscu (“to sleep”).[4]
Earliest recorded meaning
Its first example in the OLD is in Plautus, where Jupiter says he made Alcmena pregnant with a son by lying with her.[2]
Semantic evolution
Its basic sense is lying together;[2][5] Varro explains concubium, the time of first sleep, from it, and Propertius uses it of reclining together at dinner.[2][5] The usual sense is sexual intercourse, in Ovid, Livy, Virgil and Tacitus.[2][1] Caelius Aurelianus uses it for the firm closing of the teeth.[5] Church Latin has cohabitation and coitus,[6] and in British medieval law forced intercourse is violentus concubitus.[7]
Timeline
- c. 250–184 BC – Plautus of Jupiter and Alcmena.[2][8]
- 116–27 BC – Varro of lying together to sleep.[2][8]
- 57/46–12 BC – Propertius of reclining at dinner.[2][8]
- 70–19 BC – Virgil in the sexual sense.[2][8]
Meanings
Noun
Word family
- concubitālis
Related words
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ 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
- ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ 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 c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Concubitus.” Etymologically, 19 Oct. 2026, etymologically.com/la/concubitus. Accessed 20 Oct. 2026.
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