Etymologically

Etymology and origin of the Latin word patro

Confidence
Uncertain
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Proto-Indo-European (*ph₂tḗr)
Etymology tree
inherited borrowed derived
Latin pater
French père
French grand-père
Latin patro
Latin perpetro
Latin impetro
Latin paternus

Pronunciation

  • Classical: [ˈpa.troː][1]
  • Ecclesiastical: [ˈpaː.tro][1]

Forms

patrō (present infinitive patrāre, perfect active patrāvī, supine patrātum); first conjugation[1]

Etymology

The origin is uncertain.[2][3] It is perhaps from Latin pater (“father”), as the Romans, among them Priscian, and the OLD and some modern scholars hold, with the verbal suffix -ō, perhaps through pater patrātus, the title of the priest who swore treaties; pater goes back to Proto-Indo-European *ph₂tḗr (“father”).[2][4][1] Lewis & Short suggested instead the root of pateō (“to be open”).[3]

Earliest recorded meaning

The TLL dates it from Plautus, and records it in Cato, the triumphal inscription of Aemilius, Cicero, Lucretius, Sallust and Livy; it is commoner in the historians.[2] Cato uses it of finishing the sowing.[3]

Semantic evolution

It means to carry through, bring to completion or accomplish: Sallust uses it of bringing a war to an end and of committing a crime, Livy of concluding a peace and of the oath sworn by the pater patratus at a treaty, and Tacitus of executing orders and of a victory won.[4][3] Lewis & Short note that Cicero rarely uses it and Caesar not at all.[3] Manuscripts often confuse it with parō.[2]

It also had an obscene sense, to reach a sexual climax, to which Quintilian alludes;[4][3] Persius speaks of someone “melting with a lustful eye”.[4][3] Glossaries explain it with generō (“to beget”) and perficiō (“to complete”).[2] Church Latin glosses it to perform, achieve, accomplish, effect.[5]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][6]
  • 234–149 BC – Cato of finishing the sowing.[3][6]
  • 86–34 BC – Sallust of ending a war and committing a crime.[3][6]
  • 59 BC–17 AD – Livy of concluding a peace and swearing a treaty oath.[3][6]
  • 34–62 AD – Persius in the sexual sense.[4][6]

Meanings

Verb

  1. To carry through, bring to completion, accomplish, execute; to conclude a war or a peace; to commit a crime.[4][3][5][1]
  2. iūsiūrandum patrāre: to pronounce the oath at the making of a treaty.[3]
  3. To reach a sexual climax, ejaculate.[4][1]

Word family

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d e f g h i j k l Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c d e f g Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  5. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de

Derived terms

Cite this entry

“Patro.” Etymologically, 19 Oct. 2026, etymologically.com/la/patro. Accessed 20 Oct. 2026.

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