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misconduct

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Etymology and origin of the English word misconduct

Confidence
Established
Formation
Derivation
First attested
1697 John Norris
Ultimate origin
English mis-,conduct
Etymology tree
inherited borrowed derived
English conduct
English misconduct

Pronunciation

  • UK: /mɪsˈkɒndʌkt/, /mɪsˈkɔndʌkt/[1]
  • US: /mɪsˈkɑndʌkt/, /mɪsˈkɒndʌkt/[1]

Etymology

It is formed from English mis- + conduct, from the prefix meaning "bad, wrong" and the noun conduct.[2][3][4][5] The verb was formed in the same way from the verb conduct;[2][4][5] the OED compares Middle French se mesconduire (“to lead astray”), recorded once about 1525, and se méconduire, now chiefly Belgian.[2] A misconduct in a 1775 edition of a letter of 1639 is a misreading of miscontent.[2]

Earliest recorded meaning

Instances of improper behaviour, in the plural: 1697, in John Norris.[2] Merriam-Webster dates the sense "mismanagement" from 1705,[5] the year of the OED's first record of it,[2] and Etymonline dates the noun to 1710, in the sense "bad management, neglect".[3]

Semantic evolution

The noun had two meanings from the start: improper behaviour (from 1697, and as a mass noun from 1717) and bad management or culpable neglect of duty (from 1705).[2][4] Etymonline dates the first meaning only from 1729.[3] Johnson (1755) gave both, "ill behaviour; ill management".[6] In law the noun became a euphemism for adultery or other illicit sexual activity,[2][7][8] and today it is used especially of deliberate wrongdoing by officials or of improper professional conduct.[5][7][9] The verb, to mismanage, is first recorded in Johnson's Dictionary of 1755,[2] although Etymonline finds it implied in misconducted in 1707;[3] the reflexive sense "to behave improperly" dates from 1812.[2]

Timeline

  • 1697 – in the plural, instances of improper behaviour.[2]
  • 1705 – bad management, culpable neglect of duty.[2][5]
  • 1707 – the verb, implied in misconducted.[3]
  • 1717 – improper behaviour.[2]
  • 1755 – the verb, to mismanage, in Johnson's Dictionary.[2][6]
  • 1812 – reflexive verb, to behave improperly.[2]

Meanings

Noun

  1. Behaviour that breaks accepted rules or standards; improper or unethical conduct: She was dismissed for misconduct after the audit.[7][8][5]
  2. Deliberate wrongdoing, especially by an official; malfeasance.[5][7][9]
  3. Bad or dishonest management, especially by someone acting for others.[7][5][2]
  4. (law, dated) adultery.[7][8][2]

Verb

  1. To manage badly; mismanage.[5][7][8][2]
  2. To behave oneself improperly: He misconducted himself at the meeting.[5][8][2]

References

  1. ^ a b 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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  5. ^ a b c d e f g h i j Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ 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.
  7. ^ a b c d e f g The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  8. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins
  9. ^ a b Garner, Bryan A., ed. (2004), Black's Law Dictionary, 8th ed., St. Paul, Minn.: Thomson West
Cite this entry

“Misconduct.” Etymologically, 26 Oct. 2026, etymologically.com/en/misconduct. Accessed 26 Oct. 2026.

Last edited on . ·