- Confidence
- Established
- Formation
- Derivation
- First attested
- Phaedrus
- Ultimate origin
- Latin (sincērus)
Etymology tree
Pronunciation
Forms
sincēritās f (genitive sincēritātis); third declension[1]
Etymology
It is from Latin sincerus (“clean, pure, whole”) + -tās.[2][1]
Earliest recorded meaning
Phaedrus says honesty usually leads to ruin.[2] Valerius Maximus speaks of a man sure of his own integrity, and Köbler dates his work to the 1st century AD.[2][3]
Semantic evolution
It meant physical soundness or wholeness, and purity, as Pliny's clean vessels for oil or the purity of salt pans.[2][4] Valerius Maximus and Palladius use it of soundness of body and head.[5][6] Lewis & Short note it is not found before the Augustan age.[5] Figuratively it meant straightforwardness, integrity and honesty, as in Seneca and Gellius.[2][4]
In Christian and medieval Latin it was ritual or spiritual purity.[7][1] English sincerity is recorded in the early 15th century.[8]
Timeline
- 1st century AD – Phaedrus and Valerius Maximus use it of honesty.[2][3]
- 23/24–79 AD – Pliny the Elder uses it of purity.[2][3]
- c. 165 AD – Gellius uses it of integrity.[4][3]
- early 15th century – English sincerity is recorded.[8]
Meanings
Noun
- Soundness, wholeness; purity.[2][5]
- Integrity, honesty, sincerity.[2][1]
- (Ecclesiastical Latin) Moral or ritual purity.[7][1]
Related words
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ 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
Borrowed into
- English sincerity
Cite this entry
“Sinceritas.” Etymologically, 15 Oct. 2026, etymologically.com/la/sinceritas. Accessed 15 Oct. 2026.
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