Etymologically

Etymology and origin of the English word decorum

Confidence
Established
Formation
Borrowing
First attested
1568 before 1568, Ascham's Scholemaster More words from the 16th century
Borrowed from
Latin decorum
Ultimate origin
Proto-Indo-European *dek-

Pronunciation

  • UK: /dɪˈkɔːɹəm/[1]

Etymology

It is borrowed from Latin decōrum (“that which is seemly, propriety”),[2][3][4] the noun use of the neuter singular of decōrus (“seemly, fitting, proper”),[2][5][4] from decor (“grace, beauty, seemliness”),[6][4][3] related to decēre (“to be proper”), the source of decent.[4] Etymonline further traces the noun to decus (“an ornament”) and Proto-Indo-European *dek- (“to take, accept”), "on the notion of to add grace".[3] French has had the same word, French décorum, since the 16th century.[2]

Earliest recorded meaning

What suits a character, place or subject in a dramatic, literary or artistic work: before 1568, in Ascham's Scholemaster.[2][7] Etymonline dates it to the 1560s,[3] and Merriam-Webster gives 1568.[8]

Semantic evolution

The word entered English as a term for fitness in literary composition, and was then applied to life itself.[2][7] From the 1570s and 1580s it could mean what suited the circumstances,[2] what suited a real person's rank or dignity,[2][5] and proper behaviour in general.[2][3] Shakespeare's Majesty, to keep decorum, must no less beg than a kingdom, in Antony and Cleopatra, shows the second of these.[5][9] Early in the 17th century it also meant beauty arising from fitness, or simply orderliness, but both died out by the early 18th century.[2][5] By 1755 Johnson defines the word entirely by conduct: "decency; behaviour contrary to licentiousness, contrary to levity; seemliness".[9] Merriam-Webster still records a literary sense, for the standard practised by the neoclassicists.[8]

Timeline

  • before 1568 – what suits a character, place or subject in a composition (obsolete by 1756).[2]
  • c. 1571 – propriety of behaviour.[2] Etymonline dates this to the 1580s.[3]
  • 1586 – what suits the circumstances; seemliness.[2]
  • 1589 – what suits a person's character, rank or dignity.[2]
  • 1601 – a fitting act (obsolete by 1717).[2]
  • 1603 – an act or requirement of polite behaviour.[2]
  • 1604 – beauty arising from fitness (obsolete by 1729).[2]
  • 1610 – orderly condition (obsolete by 1684).[2]

Meanings

Noun

  1. Proper and dignified behaviour; propriety: The mourners behaved with decorum throughout the service.[10][2][5]
  2. A requirement of polite behaviour; in the plural, the proprieties.[10][2][5]
  3. In criticism, the standard of literary and dramatic fitness, especially among the neoclassicists.[8][5]
  4. (archaic) What suits a person's rank or dignity.[2][5]
  5. (obsolete, 1604–1729) Beauty arising from fitness or order; comeliness.[2][5]

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q r s t u Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  5. ^ a b c d e f g h i Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  7. ^ a b Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  8. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  9. ^ a b Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  10. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

Cite this entry

“Decorum.” Etymologically, 5 Nov. 2026, etymologically.com/en/decorum. Accessed 5 Nov. 2026.

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