- Confidence
- Established
- Formation
- Derivation
- First attested
- Cicero
- Ultimate origin
- Proto-Indo-European (*ḱred-dʰeh₁-)
Etymology tree
inherited borrowed derived
Pronunciation
Forms
crēdibiliter (comparative crēdibilius, superlative crēdibilissimē)[1]
Etymology
It is from Latin crēdibilis (“credible”) + -ter, from crēdō (“to believe”).[2][1] De Vaan traces ⟨crēdō⟩ to Proto-Italic *krezde/o-, from Proto-Indo-European *ḱred-dʰeh₁- (“to place the heart, believe”).[3]
Earliest recorded meaning
Its earliest source is Cicero's speech for Deiotarus.[4][5] Köbler dates Cicero 81–43 BC.[4]
Semantic evolution
It meant in a credible manner, credibly, plausibly, as in Cicero and Quintilian, and Augustine has the comparative crēdibilius.[2][5]
British Medieval Latin used it for credibly.[6]
Timeline
- 81–43 BC – Cicero uses it.[5][4]
- c. 35–95/96 AD – Quintilian uses it.[5][4]
- 354–430 AD – Augustine uses crēdibilius.[5][4]
Meanings
Adverb
Related words
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d e f Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ 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
Cite this entry
“Credibiliter.” Etymologically, 17 Oct. 2026, etymologically.com/la/credibiliter. Accessed 17 Oct. 2026.
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