Etymologically

confidence

Etymology and origin of the English word confidence

Confidence
Established
Formation
Borrowing
First attested
c. 1400
Borrowed from
Middle French confidence via Middle English
Ultimate origin
Latin (confidere)

Pronunciation

  • IPA: UK /ˈkɒn.fɪ.dəns/, US /ˈkɑːn.fə.dəns/[1]

Etymology

It is inherited from Middle English confidence,[2] borrowed from Middle French confidence[2][3] or directly borrowed from Latin cōnfidentia (“firm trust”),[3][4][5] from cōnfidēns “firmly trusting, bold”, the present participle of cōnfīdere (“to have full trust or reliance”),[3][5] from con-, here perhaps an intensive prefix, and fīdere (“to trust”),[3] from Proto-Indo-European *bheidh- (“to trust, confide, persuade”).[3] It is related to confide, confident and fidelity.[4][5]

Earliest recorded meaning

“Assurance or belief in the goodwill or truthfulness of another”: about 1400 in Etymonline,[3] about 1430 in the OED.[6]

Semantic evolution

“Reliance on one's own powers or resources, self-assurance” is from the mid-15th century,[3] 1526 in the OED,[6] and its bad sense, assurance on insufficient grounds, overboldness, from 1594.[6] “Certainty about a fact” is from the 1550s.[3][6] The confiding of private matters, a relation of trust, is from 1592,[6] and a secret, a private communication, from the 1590s.[3] The link with swindling dates from the mid-19th century, from the false trustworthiness that is the key to the trick:[3] the adjective, as in confidence man and confidence game, is from 1849,[7] and a verb “to swindle by a confidence trick” is from 1875.[6] From it came the clipping con.[3]

Timeline

  • c. 1400 – trust in another.[3]
  • 1526 – self-assurance.[6]
  • 1550s – certainty.[3][6]
  • 1590s – a secret.[3]
  • 1849 – adjective, of a swindle.[7]
  • 1875 – verb, to swindle.[6]

Modern meaning

Noun

  1. Trust or faith in a person or thing.
  2. A trusting relationship: took her into his confidence.
  3. Something told in trust; a secret.
  4. A feeling of assurance, especially self-assurance.
  5. The state of being certain: confidence in the result.

Adjective

  1. Of or relating to a swindle: a confidence trick.

Word family

  • nonconfidence
  • superconfidence
  • self-confidence
  • confidence interval
  • confidence game
  • confidence limits
  • confidence man
  • confide
  • confident
  • confidential
  • fidelity
  • faith
  • con
  • diffidence

Usage notes

The American Heritage distinguishes confidence, a firm belief in one's powers and judgement, from assurance, aplomb, self-confidence, self-possession and trust.[8]

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  3. ^ a b c d e f g h i j k l m n Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  5. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  6. ^ a b c d e f g h i Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  7. ^ a b Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  8. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Confidence.” Etymologically, 15 Oct. 2026, etymologically.com/en/confidence. Accessed 15 Oct. 2026.

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