Etymologically

sinceritas

Etymology and origin of the Latin word sinceritas

Confidence
Established
Formation
Derivation
First attested
Phaedrus
Ultimate origin
Latin (sincērus)
Etymology tree
inherited borrowed derived
Latin sincerus
English sincere
Latin sinceritas
English sincerity

Pronunciation

  • IPA (Classical): [sɪŋˈkeː.rɪ.taːs][1]
  • IPA (Ecclesiastical): [sin̠ʲˈt͡ʃɛː.ri.tas][1]

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

  1. Soundness, wholeness; purity.[2][5]
  2. Integrity, honesty, sincerity.[2][1]
  3. (Ecclesiastical Latin) Moral or ritual purity.[7][1]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i 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. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  5. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  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

Borrowed into

Cite this entry

“Sinceritas.” Etymologically, 15 Oct. 2026, etymologically.com/la/sinceritas. Accessed 15 Oct. 2026.

Last edited on . ·