Etymologically

inquisitor

Etymology and origin of the Latin word inquisitor

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Latin (quaerō)
Etymology tree
inherited borrowed derived
Latin inquiro
Latin inquisitor
Latin inquisitio

Pronunciation

  • Classical: [ɪŋ.kʷiːˈsiː.tɔr][1]
  • Ecclesiastical: [iŋ.kʷiˈs̬iː.tor][1]

Forms

inquīsītor m (genitive inquīsītōris, feminine inquīsītrix); third declension[1]

Etymology

It is from Latin inquīrō (“to search for, inquire into”) + -tor, an agent noun formed on the participle stem ⟨inquīsīt-⟩.[2][1][3] The verb is a compound of in- and quaerō (“to seek”).[1][4]

Earliest recorded meaning

It first appears in Cicero,[4][3] who in the first speech against Verres uses it of the official charged with gathering evidence for a prosecution, and in the Academica of a person who searches into the nature of things.[5][6]

Semantic evolution

The TLL counts only two instances in Cicero and finds it regularly from Seneca and Pliny the Elder on; in verse it occurs only once, in Juvenal.[3] Besides the investigator of a lawsuit, who collected witnesses and evidence for the accuser,[5][2] it named a researcher into nature or truth, as in Seneca's Naturales quaestiones,[5][6] a hunting dog that tracks game, in Pliny the Elder,[2][7] a spy or tracker sent after a suspect, in Suetonius,[7][5] and, in Juvenal, people who search the very seaweed on the shore.[5][2]

Medieval writers kept the sense “searcher, finder”: Bede calls Pliny a most skilful investigator of nature.[8] It also named a person who held an inquest or official inquiry,[8] and in Ecclesiastical Latin an officer of the Inquisition.[9] English took it over around 1400 for an inspector, and used it from the 1540s for the officers of the Inquisition.[10]

Timeline

  • 81–43 BC – Cicero uses it of a collector of evidence for a prosecution and of an inquirer into nature.[5][6][4]
  • 4 BC–65 AD – Seneca uses it of an investigator of natural phenomena.[5][4]
  • 23/24–79 AD – Pliny the Elder uses it of a dog that tracks game.[2][4]
  • c. 67–c. 127 AD – Juvenal speaks of inspectors who search even the seaweed.[2][4]
  • c. 75–c. 150 AD – Suetonius uses it of men sent to hunt down a suspect.[7][4]
  • c. 1400 – Borrowed into English for an inspector or inquirer.[10]

Meanings

Noun

  1. A person who searches out someone or something, a tracker or spy; of a dog, one that tracks game.[2][7][5]
  2. An investigator or researcher (into nature, truth and the like).[2][5]
  3. (law) A person who gathers witnesses and evidence for a prosecution.[2][5]
  4. A person who searches or inspects goods.[2]
  5. (Medieval Latin) A person who holds an inquest or official inquiry.[8]
  6. (Ecclesiastical Latin) An officer of the Inquisition, an inquisitor.[9]
  • English inquisitor

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e f g Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e f g h i j Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  8. ^ a b c Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  9. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  10. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Inquisitor.” Etymologically, 20 Oct. 2026, etymologically.com/la/inquisitor. Accessed 20 Oct. 2026.

Last edited on . ·