Etymologically

διάλογος

Etymology and origin of the Ancient Greek word διάλογος

Confidence
Established
Formation
Derivation
First attested
400s BC Plato and Isocrates More words from the 5th century BC
Ultimate origin
Ancient Greek διαλέγω
Etymology tree
inherited borrowed derived
Ancient Greek διάλογος (diálogos)
Latin dialogus
English dialogue

Pronunciation

  • 5th-century BC Attic: /di.á.lo.ɡos/[1]
  • 4th-century AD Koine: /ðiˈa.lo.ɣos/[1]
  • 10th-century Byzantine: /ðiˈa.lo.ɣos/[1]

Forms

δῐᾰ́λογος (diálogos) m (genitive δῐᾰλόγου); second declension[1]

Etymology

It is formed from Ancient Greek διαλέγω (dialégō) + -ος (-os),[1] the noun of the middle διαλέγομαι (dialégomai, “to converse”).[2][3][4] The verb is δια- (dia-, “through, between”) with λέγω (légō, “to pick out; to speak”).[1]

It was borrowed as Latin dialogus, and through Latin it passed into other languages, such as French dialogue, English dialogue and German Dialog.[5][4]

Earliest recorded meaning

It is first found in Isocrates and Plato (5th–4th century BC).[6][7] In the Protagoras (335d) Socrates warns that “our conversations will not be alike”, and in the Sophist Plato defines thought as the soul's silent dialogue with itself.[7][2][4]

Semantic evolution

From “conversation” the word became the name of the literary form that Plato had made famous: Aristotle speaks of “Socratic dialogues”, Demetrius' treatise on style says that a dialogue should be written in the same manner as a letter, and later writers speak of the dialogues of Aristotle and others.[7][2][3] Aristotle also used it of arguments in debate, as opposed to mathematical proofs, and Plutarch could use it scornfully of boastful talk.[7][2] In the 2nd century AD Lucian brought Dialogue on stage as a character, and Athenian inscriptions of the same century use the word for a set debate in which the ephebes contested the precedence of Athens and Sparta at the festival at Plataea.[7]

In the papyri of Ptolemaic Egypt it took on a technical sense, an account or balance of grain and other goods.[7][2] Hesychius glosses it as a speech or a poem.[8]

The learned Modern Greek διάλογος (diálogos) means a conversation, an exchange of views aimed at settling differences, and a philosophical or literary dialogue; its use for the spoken lines of a play or film is a semantic loan from French.[9][10]

Timeline

  • 5th–4th century BC – Plato uses it for conversation and for the soul's inner dialogue with itself.[7][4]
  • 4th century BC – Aristotle names the “Socratic dialogues” as a form of writing.[7][2]
  • 3rd century BC – Papyri from Egypt use it for an account of grain.[7][2]
  • 1st–2nd century AD – Plutarch uses it for the dialogue as a literary genre.[3][7]
  • 2nd century AD – Lucian personifies Dialogue, and Athenian inscriptions use the word for a debate held by the ephebes.[7]
  • Modern Greek – The learned διάλογος (diálogos) also means the dialogue of a play or film, after French.[9]

Meanings

Noun

  1. A conversation, discussion.[2][3][7]
  2. A dialogue as a literary or philosophical work.[3][7]
  3. (in the plural) Arguments used in debate, dialectical reasoning.[2][7]
  4. A set debate or series of speeches, held by the ephebes at Athens.[7][2]
  5. (papyri) An account, balance or reckoning of goods.[7][2]

Word family

  • διαλογικός (dialogikós)

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Liddell, Henry George; Scott, Robert; Jones, Henry Stuart (1940), A Greek-English Lexicon, 9th ed., Oxford: Clarendon Press
  3. ^ a b c d e Diggle, James, et al., eds. (2021), The Cambridge Greek Lexicon, Cambridge: Cambridge University Press
  4. ^ a b c d Babiniotis, Georgios (2010), Ετυμολογικό λεξικό της νέας ελληνικής γλώσσας [Etymological Dictionary of Modern Greek], Athens: Κέντρο Λεξικολογίας
  5. ^ Saalfeld, Günther Alexander (1874), Index Graecorum vocabulorum in linguam latinam translatorum, Berlin: Weidmann
  6. ^ Keersmaekers, Alek (2021–2025), GLAUx: The Greek Language Automated corpus, https://github.com/alekkeersmaekers/glaux
  7. ^ a b c d e f g h i j k l m n o p Rodríguez Adrados, Francisco, et al., eds. (1980–), Diccionario Griego-Español, Madrid: CSIC, http://dge.cchs.csic.es/xdge
  8. ^ Hesychius of Alexandria, Lexicon, ed. Kurt Latte (Α–Ο, Copenhagen 1953–1966) and Moritz Schmidt (Π–Ω, Jena 1858–1868)
  9. ^ a b Ινστιτούτο Νεοελληνικών Σπουδών (Ίδρυμα Μανόλη Τριανταφυλλίδη) (1998), Λεξικό της κοινής νεοελληνικής, Thessaloniki: Aristotle University of Thessaloniki
  10. ^ Πάπυρος–Larousse–Britannica, Μέγα Λεξικό της Ελληνικής Γλώσσας, Athens: Πάπυρος
Cite this entry

“Διάλογος.” Etymologically, 13 Nov. 2026, etymologically.com/grc/%CE%B4%CE%B9%CE%AC%CE%BB%CE%BF%CE%B3%CE%BF%CF%82. Accessed 13 Nov. 2026.

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