Etymologically

penetratio

Etymology and origin of the Latin word penetratio

Confidence
Established
Formation
Derivation
First attested
c. 125–175 AD, Apuleius
Ultimate origin
Latin penetrō
Etymology tree
inherited borrowed derived
Latin penetro
French pénétrer
Latin penetratio
English penetration
From the same root
Latin penetrabilis ← penetro
Latin penetralis ← penetro

Forms

penetrātiō f (genitive penetrātiōnis); third declension[1]

Etymology

It is from Latin penetrō (“to penetrate”) + -tiō.[2][3][4]

Earliest recorded meaning

It is first found in Apuleius (c. 125–175 AD),[2][5] in an image in the Florida: arguments that cling to one another like thorns, with equal points on both sides and a like piercing (simili penetratione).[2][3]

Semantic evolution

Lewis and Short call it post-classical.[6] Augustine uses it of light cutting through the Manichaean land of darkness, and the medical writer Caelius Aurelianus of a gentle cautery and of the insertion of a surgical instrument.[3] In one of his sermons Augustine also uses it of the mind: to God belongs glory, to men consideration and wonder, but no full insight into his ways.[3][7]

Medieval scholastic Latin used it for the passing of one body into another, as when wine and water are mixed.[8] English borrowed it in the early 15th century, meaning a piercing wound; the sense “insight” followed about 1600.[4]

Timeline

  • c. 125–175 AD – Apuleius uses it of piercing.[2][3][5]
  • 354–430 AD – Augustine uses it of light passing through darkness and of insight.[3][7][5]
  • early 15th century – Borrowed into English as penetration, a piercing wound.[4]

Meanings

Noun

  1. The action of piercing; penetration.[2][6]
  2. (Late Latin) A passing into or through something, as of light or of a surgical instrument.[3]
  3. (Late Latin) Full insight (into the ways of God).[3][7]
  4. (Medieval Latin) The passing of one body into another, permeation.[8]

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f g h Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  8. ^ a b 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

Borrowed into

Cite this entry

“Penetratio.” Etymologically, 24 Oct. 2026, etymologically.com/la/penetratio. Accessed 24 Oct. 2026.

Last edited on . ·