- Confidence
- Established
- Formation
- Derivation
- First attested
- Lucretius
- Ultimate origin
- Proto-Indo-European (*h₁ey-)
Pronunciation
Forms
coitus m (genitive coitūs); fourth declension[1]
Etymology
It is from Latin coeō (“to come together”) + -tus, from con- and eō (“to go”).[2][3][1] De Vaan traces ⟨eō⟩ to Proto-Italic *ei- (“to go”), Proto-Indo-European *h₁ey- (“to go”).[4]
Earliest recorded meaning
The OLD's earliest citation is Lucretius, of physical union.[2] Köbler dates Lucretius 96–55 BC.[5]
Semantic evolution
It meant a uniting, as of atoms in Lucretius; sexual intercourse, as in Ovid; a meeting, encounter, and a gathering or set of people, as in Seneca; and in Celsus the closing of a vein.[2][6] The OLD notes that it is not always distinguishable from coetus.[2]
British Medieval Latin used it for a coming together, an astronomical conjunction, and sexual intercourse.[7] English coitus (1848) is a scientific use of it.[8]
Timeline
- 96–55 BC – Lucretius uses it of physical union.[2][5]
- 43 BC–18 AD – Ovid uses it of sexual intercourse.[2][5]
- 4 BC–65 AD – Seneca uses it of a meeting.[2][5]
- 1848 – English coitus is recorded.[8]
Meanings
Noun
- A coming together, meeting.[2]
- Physical union.[2]
- Sexual intercourse, coitus.[2]
- A gathering, assembly.[2]
- (Medieval Latin, astronomy) A conjunction.[7]
Related words
References
- ^ a b c d 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
- ^ 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ 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
Cite this entry
“Coitus.” Etymologically, 17 Oct. 2026, etymologically.com/la/coitus. Accessed 17 Oct. 2026.
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