Etymologically
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diplomat

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Pronunciation

  • /ˈdɪp.lə.mæt/[1]

Etymology

It is borrowed from French diplomate,[2][3][4][5] a back-formation from diplomatique (“diplomatic”), on the model of aristocrate beside aristocratique.[2][3][6] Klein derives it from the phrase agent diplomatique (“diplomatic agent”).[7] The French adjective goes back to New Latin diplōmaticus (“relating to official documents”), used by Mabillon in 1681,[2][3] from the stem of Latin diplōma (“a state letter of recommendation, official document”),[3][8] from Ancient Greek δίπλωμα (díplōma, “a paper folded double; a licence”),[3][9] from διπλόω (diplóō, “to double, fold over”), from διπλόος (diplóos, “double”).[3][9] Ayto calls the Greek adjective a distant relative of double.[9]

Earliest recorded meaning

A person employed or skilled in diplomacy: 1813, in Sir Robert Wilson's Private Diary.[2][3][4]

Semantic evolution

The Latin and English adjectives first referred to official documents and charters: diplomatic in English is recorded in this sense from 1711.[3] The OED traces the shift to international affairs to the titles of collections of treaties, such as Leibniz's Codex Juris Gentium Diplomaticus (1695) and Dumont's Corps universel diplomatique (1726), where the word meant original documents but came to be felt as "relating to international relations".[2][3] English diplomatic had this sense by 1787,[3] and French diplomatique by 1788.[2] English formed the noun twice: diplomatist is recorded from 1801 in Etymonline (1815 in the OED),[3][2] and diplomat, from French, from 1813.[2][3] Both were soon used of anyone tactful or shrewd in dealing with people.[2][10][4]

Timeline

  • 1681 – Mabillon's Latin diplomaticus, relating to documents.[2]
  • 1711 – English diplomatic, relating to official documents.[3]
  • 1787 – diplomatic, relating to international relations.[3]
  • 1801 – diplomatist.[3]
  • 1813 – diplomat, a person employed in diplomacy.[2][3][4]

Meanings

Noun

  1. An official, such as an ambassador, who represents a government in its relations with other governments.[10][4][2]
  2. A person who deals with others tactfully and skilfully: Our chairman is a born diplomat.[10][4]

Word family

  • diplomatize

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f g h i j k l m n o p Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  6. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  7. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  9. ^ a b c Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
  10. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins