Etymologically

prosecutor

Etymology and origin of the English word prosecutor

Confidence
Established
Formation
Borrowing
First attested
1593
Borrowed from
Latin prosecutor
Ultimate origin
Latin (sequor)

Pronunciation

  • IPA: UK /ˈprɒs.ɪ.kjuː.tə/, US /ˈprɑː.sɪ.kjuː.t̬ɚ/[1]

Etymology

It is borrowed from Medieval Latin prōsecūtor, which in Late Latin meant an escort of goods in transit,[2] an agent noun from Latin prōsequor (“to follow, pursue”) (see prosecute),[3][2] from prō- and sequor (“to follow”).[2]

Earliest recorded meaning

One who follows up or carries on a purpose or action: 1593 in Merriam-Webster, the 1590s in Etymonline, 1599 in the OED.[2][3][4]

Semantic evolution

A pursuer is an obsolete sense of 1607.[4] The legal sense, one who brings a case in a court of law, is from the 1620s in Etymonline, 1670 in the OED;[3][4] earlier such a person was a promoter (late 15th century).[3] A malicious prosecutor, a persecutor, is an obsolete sense of 1704,[4] and prosecutorship is from 1870.[4]

Timeline

  • 1593 – one who carries something on.[2]
  • 1607 – a pursuer (obsolete).[4]
  • 1620s – a prosecutor in law.[3]
  • 1870 – prosecutorship.[4]

Modern meaning

Noun

  1. A person, especially a public official, who brings and conducts legal proceedings, especially in a criminal court.
  2. One who prosecutes something.

Word family

  • prosecutorial
  • public prosecutor
  • special prosecutor

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 d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  3. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d e f g Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Prosecutor.” Etymologically, 17 Oct. 2026, etymologically.com/en/prosecutor. Accessed 17 Oct. 2026.

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