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
Derivations
From the same root
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
- To take the fancy of, to win the affection of; to please (with dative).[2][1]
- Of a plan: to be approved, to be agreed on.[2]
- To please at the same time, to please as well.[4][3]
- (Ecclesiastical Latin) To be acceptable to;[5][6] sibi complacere in, to be well pleased with.[5][6]
Related words
- English complacent
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e f Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e f g Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ 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.
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