Etymologically

Etymology and origin of the Latin word logica

Confidence
Established
Formation
Borrowing
First attested
81–43 BC, Cicero, in Greek letters
Borrowed from
Ancient Greek λογική
Ultimate origin
Ancient Greek λογική

Forms

logica f (genitive logicae); first declension[1][2] Also logicē (genitive logicēs).[1][2][3]

Etymology

It is borrowed from Ancient Greek λογική (logikḗ, “logic”),[3][1] the feminine of λογικός (logikós, “of speech or reason”) with “art” understood,[3][4] from λόγος (lógos, “word, reason”).[4] Isidore of Seville explained the name the same way: ⟨logos⟩ means both speech and reason among the Greeks.[5]

Earliest recorded meaning

Cicero still writes the word in Greek letters, for the part of philosophy concerned with inquiry and argument;[3][1] in Latin letters it is found in Boethius and Isidore of Seville.[1][2]

Semantic evolution

Isidore defines dialectic as the part of philosophy called logica, the rational part, able to define, inquire and argue,[6] and divides it into dialectic and rhetoric.[5] The purely Latin name was rationālis (philosophy).[1]

In the medieval schools it was one of the main parts of philosophy, and at Oxford a statute from before 1350 required masters of arts to hold a disputation in logic.[7] English took over the word, through Old French, in the mid-14th century as logic.[4]

Timeline

  • 81–43 BC – Cicero uses the Greek word λογική.[3][8]
  • c. 560–636 AD – Isidore of Seville defines logica as the rational part of philosophy.[3][8]
  • before 1350 – Oxford statutes require disputations in logic.[7]
  • mid-14th century – Borrowed into English as logic.[4]

Meanings

Noun

  1. Logic, the part of philosophy dealing with reasoning and argument.[3][1][2]

References

  1. ^ a b c d e f g Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  2. ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  3. ^ a b c d e f g Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911)., p. 2.24.7
  6. ^ Isidore of Seville, Etymologiarum sive Originum libri XX, ed. W. M. Lindsay (Oxford, 1911)., p. 2.22.1
  7. ^ a b 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
  8. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de

Related etymologies

Cite this entry

“Logica.” Etymologically, 23 Oct. 2026, etymologically.com/la/logica. Accessed 23 Oct. 2026.

Last edited on . ·