Etymologically

coitus

Etymology and origin of the Latin word coitus

Confidence
Established
Formation
Derivation
First attested
Lucretius
Ultimate origin
Proto-Indo-European (*h₁ey-)
Etymology tree
inherited borrowed derived
Latin coeo
Latin coitio
Latin coitus

Pronunciation

  • IPA (Classical): [ˈko.ɪ.tʊs][1]
  • IPA (Ecclesiastical): [ˈkɔː.i.tus][1]

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

  1. A coming together, meeting.[2]
  2. Physical union.[2]
  3. Sexual intercourse, coitus.[2]
  4. A gathering, assembly.[2]
  5. (Medieval Latin, astronomy) A conjunction.[7]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ 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
  8. ^ 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.

Last edited on . ·