Etymologically

contradictorius

Etymology and origin of the Latin word contradictorius

Confidence
Established
Formation
Derivation
First attested
400 law in the Theodosian Code More words from the 4th century
Ultimate origin
Latin contrādīcō
Etymology tree
inherited borrowed derived
Latin contrādictōrius
English contradictory

Pronunciation

  • Classical: [kɔn.traː.dɪkˈtoː.ri.ʊs][1]
  • Ecclesiastical: [kon.tra.dikˈtɔː.ri.us][1]

Forms

contrādictōrius (feminine contrādictōria, neuter contrādictōrium); first/second-declension adjective[1]

Etymology

It is formed from Latin contrādictor + -ius,[2] from contrādīcō (“to speak against”).[2][3]

Earliest recorded meaning

A law of 400 AD, collected in the Theodosian Code, speaks of written objections (contradictorii libelli).[2][4]

Semantic evolution

In Late Latin it meant containing an objection or contradiction: a counter-pleading, or a polemical book.[5][4] Boethius made it a term of logic, for the contradictory opposition of propositions,[2][6] the sense the scholastics kept: Thomas Aquinas uses it for simply denying what another affirms, or affirming what another denies.[7]

Medieval law used it for the opposing party, for the refractory, and for a love of litigation;[8] as a feminine noun, contradictoria was a defiance, the announcement of a feud.[9] In logic the noun meant a contradictory proposition.[10] English borrowed it as contradictory,[11] and Italian contraddittorio continues it.[6]

Timeline

  • 400 AD – A law later collected in the Theodosian Code speaks of contradictorii libelli.[2]
  • 5th century AD – Caelius Aurelianus calls certain books contradictorii.[2][4][3]
  • c. 485–c. 580 AD – Cassiodorus, in the Tripartite History, names a book against tempting demons liber contradictorius.[5][2][3]
  • 1530s – English borrows it as contradictory.[11]

Meanings

Adjective

  1. Containing an objection or contradiction; polemical.[5][4]
  2. (logic) Contradictory.[2][10][7]
  3. (Medieval Latin, law) Of the opposing party, adverse.[8]
  4. (Medieval Latin) Refractory, contumacious.[8]

Noun

  1. (Medieval Latin) As feminine contradictoria: a defiance, the announcement of a feud.[9]
  2. (Medieval Latin, logic) A contradictory proposition.[10]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  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 Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  7. ^ a b Schütz, Ludwig (1895), Thomas-Lexikon, 2nd ed., Paderborn: F. Schöningh
  8. ^ a b c Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  9. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  10. ^ 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
  11. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Contradictorius.” Etymologically, 7 Nov. 2026, etymologically.com/la/contradictorius. Accessed 8 Nov. 2026.

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