Etymology and origin of the Latin word fortitudo
- Confidence
- Established
- Formation
- Derivation
- First attested
- 190–159 BC, Terence
- Ultimate origin
- Latin (fortis)
Forms
fortitūdō f (genitive fortitūdinis); third declension[1]
Etymology
It is formed from Latin fortis (“strong, brave”) + -tūdō.[2][1][3][4] De Vaan finds the origin of ⟨fortis⟩, older ⟨forctus⟩, undecided: it may be Proto-Italic *forkti/o- from Proto-Indo-European *bʰorǵʰ-to- (“stuffed”), like farciō (“to stuff”), or from a root “firm” seen in Indo-Iranian.[5]
Earliest recorded meaning
Köbler gives Terence as its first author.[6] In the Phormio a slave fears that such boldness will end in the stocks.[2]
Semantic evolution
It is bodily strength, which Phaedrus' she-goats may boast of so long as they do not match the he-goats', and which Lewis and Short find very rare;[2][7] Jerome uses it of the firmness of woven linen.[2][7] Above all it is courage and fortitude, and in the plural deeds of courage.[2]
Church Latin glosses it “strength, power, might, fortitude”.[8] In Medieval Latin it is physical force, compulsion, an army (after Daniel), and of things firmness.[9] English fortitude (late 14th century), first moral strength as a cardinal virtue, comes from it.[4]
Timeline
- 190–159 BC – Terence of boldness.[2][6]
- c. 15 BC–c. 50 AD – Phaedrus of physical strength.[2][6]
- c. 383–419/420 AD – Jerome of the strength of cloth.[7][6]
- late 14th century – English fortitude.[4]
Meanings
Noun
- Physical strength, vigour; firmness.[2][1][7]
- Courage, bravery, fortitude;[2][1][8] (plural) brave deeds.[2][1][8]
- (Medieval Latin) Force, compulsion; an army.[9]
Related words
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Fortitudo.” Etymologically, 18 Oct. 2026, etymologically.com/la/fortitudo. Accessed 19 Oct. 2026.
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