Etymologically

perpetrator

Etymology and origin of the Latin word perpetrator

Confidence
Established
Formation
Derivation
First attested
355–361 Lucifer of Cagliari More words from the 4th century
Ultimate origin
Latin perpetrō
Etymology tree
inherited borrowed derived
Proto-Indo-European *ph₂tḗr
Ancient Greek πατήρ (patḗr)
Latin pater
French père
Italian padre
English padre
Spanish padre
Latin patrō
Latin perpetrō
Latin perpetrātor
English perpetrator
From the same root
Ancient Greek πατριά (patriā́) ← πατήρ
Ancient Greek πάτριος (pátrios) ← πατήρ
Ancient Greek πατρίς (patrís) ← πατήρ
Latin paterfamiliās ← pater
Latin paternus ← pater
Latin patrimōnium ← pater
Latin patrōnus ← pater
French grand-père ← père
Latin impetrō ← patrō

Forms

perpetrātor m (genitive perpetrātōris); third declension[1]

Etymology

It is from Latin perpetrō (“to carry out, commit”) + -tor, an agent noun.[2][1][3]

Earliest recorded meaning

The TLL's first passage is from Lucifer of Cagliari (355–361), who calls an opponent a lover and doer of injustice.[2][4]

Semantic evolution

It always had an object in the genitive and was used of bad deeds: of a crime, a murder or a sin.[2][1] Augustine speaks of the perpetrator peccati, and Sidonius of the doer of a murder.[1] In British sources it can also mean one who completes a task, and once, translating Middle English purchesurs, a buyer.[5] English perpetrator was taken from it in the 1560s.[3]

Timeline

  • 355–361 AD – Lucifer of Cagliari uses it for a doer of injustice.[2][4]
  • 354–430 AD – Augustine writes of the committer of a sin.[1][4]
  • c. 431–486 AD – Sidonius uses it of a murderer.[1][4]
  • 1560s – Borrowed into English as perpetrator.[3]

Meanings

Noun

  1. (Late Latin) One who commits a deed, especially a crime or sin; a perpetrator.[2][1][6]
  2. (Medieval Latin) One who brings a task to an end, a performer.[5]
  3. (Medieval Latin) A purchaser, buyer.[5]

References

  1. ^ a b c d e f g Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  2. ^ a b c d e Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ 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
  6. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry

“Perpetrator.” Etymologically, 7 Nov. 2026, etymologically.com/la/perpetrator. Accessed 8 Nov. 2026.

Last edited on . ·