Etymologically

operation

Etymology and origin of the English word operation

Confidence
Established
Formation
Borrowing
First attested
c. 1386
Borrowed from
Old French operacion via Middle English
Ultimate origin
Latin (opus)

Pronunciation

  • IPA: UK /ˌɒp.ərˈeɪ.ʃən/, US /ˌɑː.pəˈreɪ.ʃən/[1]

Etymology

It is inherited from Middle English operacioun,[2] borrowed from Old French operacion (“operation, working, proceedings”),[3][4] from Latin operātiō (“a working, operation”),[3][2] a noun of action from the past participle of operor (“I work, labor”),[3][2] the source of operate, from opera “work, effort”, related to opus (“a work”).[3] Etymonline takes it to Proto-Indo-European *op- (“to work, produce in abundance”).[3]

Earliest recorded meaning

Action, performance, work: about 1386,[5] the late 14th century,[3] also the performance of some science or art.[3][5]

Semantic evolution

Working, the exercise of force or influence, is from 1390,[5] and the power to produce an effect from 1509.[5] Johnson (1755) defined it first as “agency; production of effects; influence”.[6] The surgical sense, an act performed on a patient's body, usually with instruments, is first attested in the 1590s, 1597 in the OED.[3][5] The military sense, a planned series of movements, is by 1749.[3] A business transaction, especially a speculative one, is from 1832,[5] and in operation, “working”, from 1818.[5] In mathematics an operation is a process such as addition.[7][8]

Timeline

  • c. 1386 – action, performance.[5]
  • 1390 – working, agency.[5]
  • 1509 – power to produce effects.[5]
  • 1597 – a surgical operation.[5][3]
  • 1749 – a military operation.[3]
  • 1818 – in operation.[5]
  • 1832 – a business transaction.[5]

Modern meaning

Noun

  1. The act or process of working or functioning: the operation of a machine.
  2. The state of being in effect: the law came into operation.
  3. A procedure in which a surgeon cuts into the body to repair or remove something.
  4. A planned military or police action.
  5. A business or organization; an enterprise.
  6. (mathematics) A process such as addition or multiplication.

Word family

  • misoperation
  • operationism
  • preoperation
  • suboperation
  • reoperation
  • binary operation
  • unary operation
  • opera
  • operable
  • operand
  • operant
  • operate
  • operational
  • operative
  • operator
  • opus
  • cooperation
  • office

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  3. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ Pearsall, Judy, ed. (1998), The New Oxford Dictionary of English, Oxford: Clarendon Press
  5. ^ a b c d e f g h i j k l m Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  6. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  7. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  8. ^ Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster

Related etymologies

Cite this entry

“Operation.” Etymologically, 15 Oct. 2026, etymologically.com/en/operation. Accessed 15 Oct. 2026.

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