Etymology and origin of the Latin word reprobus
- Confidence
- Established
- Formation
- Back-formation
- First attested
- c. 160–220 Tertullian More words from the 2nd century
- Ultimate origin
- Latin reprobō
Etymology tree
From the same root
Forms
reprobus (feminine reproba, neuter reprobum); first/second-declension adjective[1]
Etymology
It is a back-formation from Latin reprobō (“to reject, condemn”), made by taking the adjectival ending ⟨-us⟩ in place of the verb's ending.[2][3][1] The TLL describes it as formed from the verb backwards, with no comparative or superlative attested.[3]
Earliest recorded meaning
The TLL finds it from Tertullian and Ulpian on.[3] Tertullian uses the masculine plural as a noun for the damned,[4] and Ulpian speaks of reproba pecunia, money rejected as below standard.[2][5][4]
Semantic evolution
The first sense was commercial: coins or money refused because they were base or false.[2][6] The word then spread mainly through the Bible and Church writers,[3] where it renders Ancient Greek ἀδόκιμος (adókimos): the Vulgate has argentum reprobum “rejected silver” and men reprobi circa fidem “worthless as to the faith”.[7][5] Ecclesiastical Latin used it for what is false, blameworthy or good for nothing, and as a noun for a castaway.[8]
Medieval Latin kept both lines: worthless, waste goods, and the reprobate, damned soul.[9] British sources apply it to things below standard, to base money, and to persons judged unfit for an office.[10]
Timeline
- c. 160–220 AD – Tertullian uses reprobi for the damned.[4][3][11]
- before 223 AD – Ulpian, in the Digest, writes of reproba pecunia, money refused as base.[2][5][11]
- 390–406 AD – The Vulgate uses it of rejected silver and of men worthless in faith.[7][5][11]
- c. 1090 – Anselm sets a consilium reprobum against God's eternal counsel.[10]
Meanings
Adjective
- (of money) Rejected as below standard; base, counterfeit.[2][5][6]
- (Late Latin) Spurious, worthless, reprehensible.[5][8][7]
- (Ecclesiastical Latin) Rejected by God, reprobate, damned; as a noun, a castaway.[4][8][9]
- (Medieval Latin) Below standard, unfit, especially of a person rejected for an office.[10][9]
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
- ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b c Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
- ^ a b c 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
- ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Reprobus.” Etymologically, 8 Nov. 2026, etymologically.com/la/reprobus. Accessed 8 Nov. 2026.
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