Etymologically

complaceo

Etymology and origin of the Latin word complaceo

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC Plautus More words from the 3rd century BC
Ultimate origin
Latin placeō
Etymology tree
inherited borrowed derived
Latin placeō
Catalan plaure
Italian piacere
Old French plaisir
French plaisir
English please
English pleasure
Romanian plăcea
Spanish placer
Latin complaceō
Derivations
From the same root
Latin displiceō ← placeō
Latin placibilis ← placeō
Latin plācidus ← placeō
Latin placitus ← placeō
Latin plācō ← placeō
Italian spiacere ← piacere
English pleasurable ← plaisir
Romanian plăcere ← plăcea

Pronunciation

  • Classical: [kɔmˈpɫa.ke.oː][1]
  • Ecclesiastical: [komˈplaː.t͡ʃe.o][1]

Forms

complaceō (present infinitive complacēre, perfect active complacuī or complacitus sum, supine complacitum); second conjugation, optionally semi-deponent, no imperative[1] An older spelling is conplaceo.[2]

Etymology

It is formed from Latin con- + placeō (“to please”).[2][1][3]

Earliest recorded meaning

Plautus has it in the Amphitruo, of whatever has once taken the fancy of a lover.[2]

Semantic evolution

The perfect is either complacuī or the passive form complacitus sum.[2][4] L&S notes that, apart from Columella, it is found only before and after the Classical period.[4] In the strict sense it meant to please together with someone else, but mostly it was little more than placeō.[3] Of a plan it meant to be approved or agreed.[2]

In Christian Latin it meant to be acceptable to God,[5][6] as in the Vulgate's in quo mihi complacui (“in whom I am well pleased”).[6] The participle complacitus came to be used as an adjective, “pleased, favourable”.[4]

Timeline

  • c. 250–184 BC – Plautus uses it of what takes a lover's fancy, and of a god's will.[2][7]
  • 190–159 BC – Terence has the perfect complacita est.[4][3][7]
  • 1st century AD – Columella uses it.[4][7]
  • c. 165 AD – Gellius uses it of a plan accepted by everyone.[3][7]
  • 390–406 AD – The Vulgate uses it of what pleases God.[3][4][7]

Meanings

Verb

  1. To take the fancy of, to win the affection of; to please (with dative).[2][1]
  2. Of a plan: to be approved, to be agreed on.[2]
  3. To please at the same time, to please as well.[4][3]
  4. (Ecclesiastical Latin) To be acceptable to;[5][6] sibi complacere in, to be well pleased with.[5][6]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f g Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  6. ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Complaceo.” Etymologically, 13 Nov. 2026, etymologically.com/la/complaceo. Accessed 14 Nov. 2026.

Last edited on . ·