Etymologically

complexus

Etymology and origin of the Latin word complexus

Confidence
Established
Formation
Derivation
First attested
Pacuvius
Ultimate origin
Latin (plectō)

Forms

complexus m (genitive complexūs); fourth declension[1] It is also spelled conplexus.[2]

Etymology

It is from complector “to embrace” with the suffix -tus.[2][1]

Earliest recorded meaning

The OLD's earliest citation is from Pacuvius, of encircling.[2] Köbler's first source is Cicero.[3]

Semantic evolution

It meant a physical enveloping, encircling, as in Pacuvius, and an embrace, a clasping of hands, as in Cicero, and Cicero also used it for sexual intercourse, mental grasp, and the bringing together of things, inclusion.[2] Ovid uses it of a grasp, hold.[2] Gaffiot cites mundus omnia complexū suō continet “the world contains all things in its embrace”.[4]

In Medieval Latin it meant an association, partnership.[5] Bede uses it.[3] English complex (1650s) came through French complexe from the participle complexus “surrounding, embracing”.[6]

Timeline

  • 220–130 BC – Pacuvius uses it.[2][3]
  • 81–43 BC – Cicero uses it of embraces.[2][3]
  • 1650s – English complex is recorded.[6]

Meanings

Noun

  1. An embrace.[2]
  2. An encircling.[2]
  3. A grasp; comprehension.[2]
  4. Inclusion.[2]

References

  1. ^ a b 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. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  5. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  6. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Complexus.” Etymologically, 16 Oct. 2026, etymologically.com/la/complexus. Accessed 16 Oct. 2026.

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