Etymologically

confidentia

Etymology and origin of the Latin word confidentia

Confidence
Established
Formation
Derivation
First attested
Naevius
Ultimate origin
Latin (fīdō)
Etymology tree
inherited borrowed derived
Latin confidentia
English confidence

Forms

cōnfīdentia f (genitive cōnfīdentiae); first declension[1]

Etymology

It is from Latin cōnfīdēns (“confident, bold”) + -ia,[2][1] the participle of cōnfīdō “to trust firmly”, from con- and fīdō “to trust”.[3]

Earliest recorded meaning

Naevius, in a tragedy, says all the confidence of speech has fallen away.[2] Köbler dates Naevius c. 235–200 BC and marks the attestation as uncertain.[4]

Semantic evolution

It meant assurance or self-confidence, and a firm belief, often in the phrase cōnfīdentia est with an infinitive, as Plautus' slave is confident he can defeat his enemies.[2][5] In a bad sense it was audacity or impudence, as Plautus asks with what impudence someone demands so much money, and Cato pairs it with audācia.[2] Lewis & Short note that the sense of firm trust is rare, while that of boldness is common.[6]

In medieval Latin it was a sworn promise and, in British documents, trust and letters of credence.[7][8] English confidence is recorded around 1400.[3]

Timeline

  • c. 235–200 BC – Naevius uses it of confidence of speech.[2][4]
  • c. 250–184 BC – Plautus uses it of confidence and impudence.[2][4]
  • c. 1400 – English confidence is recorded.[3]

Meanings

Noun

  1. Assurance, self-confidence.[2][1]
  2. A firm belief or expectation.[2]
  3. Boldness, audacity, impudence.[2][1]
  4. (Medieval Latin) A sworn promise; trust.[7][8]

References

  1. ^ a b c d 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 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ 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

Borrowed into

Cite this entry

“Confidentia.” Etymologically, 15 Oct. 2026, etymologically.com/la/confidentia. Accessed 16 Oct. 2026.

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