Etymologically

diffidens

Etymology and origin of the Latin word diffidens

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC Plautus More words from the 3rd century BC
Ultimate origin
Latin diffīdō
Etymology tree
inherited borrowed derived
Latin fīdō
Latin diffīdō
Latin diffīdēns
English diffident
Derivations
From the same root
Latin cōnfīdō ← fīdō
Latin fīdāmen ← fīdō
Latin fīdens ← fīdō
Latin fīdūcia ← fīdō

Forms

diffīdens (genitive diffīdentis); third-declension one-termination adjective[1] The comparative diffīdentior is attested.[2]

Etymology

Used as an adjective, it is the present participle from Latin diffīdō (“to lack confidence, despair”).[1][2] The verb is formed from dis- and fīdō (“to trust”),[1] which goes back to Proto-Italic *feiþe- and Proto-Indo-European *bʰeidʰ-e/o- (“to trust”).[3]

Earliest recorded meaning

Georges and Köbler record the adjective in Plautus and Sallust,[4][5] meaning “distrustful”; the OLD's citation is Suetonius' Life of Claudius, who was “nothing so much as timid and distrustful”.[1]

Semantic evolution

It means lacking confidence, whether in others or in oneself, and so diffident and anxious.[1][2] Glossaries render it with Greek words for “disobedient, not believing” and “not trusting”.[6]

Italian diffidente continues it.[7]

Timeline

  • c. 250–184 BC – Plautus uses it, according to Georges and Köbler.[4][5]
  • 86–34 BC – Sallust uses it.[4][5]
  • c. 75–c. 150 AD – Suetonius, in his Life of Claudius, calls him timid and distrustful.[1][2][5]

Meanings

Adjective

  1. distrustful, lacking in confidence.[1][4]
  2. Without self-confidence, diffident, anxious.[2]

Word family

  • diffīdenter

Usage notes

The adverb diffīdenter, “without self-confidence”, is very rare: Cicero uses it at the start of the Pro Cluentio, and Livy and Ammianus Marcellinus have it too.[2]

References

  1. ^ a b c d e f g Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  2. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Goetz, Georg (1888–1923), Corpus glossariorum Latinorum, Leipzig: Teubner; vols. VI–VII Thesaurus glossarum emendatarum, digital ed. CGLO, Munich: Bayerische Akademie der Wissenschaften
  7. ^ Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier

Borrowed into

Cite this entry

“Diffidens.” Etymologically, 7 Nov. 2026, etymologically.com/la/diffidens. Accessed 8 Nov. 2026.

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