Etymologically

Etymology and origin of the Latin word expiatio

Confidence
Established
Formation
Derivation
First attested
81–43 BC Cicero More words from the 1st century BC
Ultimate origin
Latin expiō
Etymology tree
inherited borrowed derived
Latin pīus
English pious
Latin piō
Latin expiō
Latin expiātiō
English expiation
From the same root
Latin impius ← pīus
Latin piē ← pīus
Latin pietās ← pīus
Spanish piedad ← pīus
Latin piāculum ← piō
Latin inexpiābilis ← expiō

Forms

expiātiō f (genitive expiātiōnis); third declension[1]

Etymology

It is formed from Latin expiō (“to atone for, purify”) + -tiō.[2][3][1]

Earliest recorded meaning

It is first found in Cicero (81–43 BC),[4][5] who asks to which offended gods an atonement is owed: quibus dis violatis expiatio debeatur.[2]

Semantic evolution

Cicero also uses it of rites that avert the evil foretold by portents (portentorum expiationes).[2] Livy has it for the ritual purification of shrines and for atonement for a broken treaty.[2][3] L&S calls the word rare but classical.[3]

The Vulgate uses it in the ritual laws of the Old Testament,[3] and in Ecclesiastical Latin it is atonement for sin.[6] Medieval charters grant land “for the expiation” of the donor's sins (pro expiatione delictorum).[7][8] English borrowed it in the 15th century as expiation.[9]

Timeline

  • 81–43 BC – Cicero uses it of atonement owed to the gods and of the averting of portents.[2][5]
  • 59 BC–17 AD – Livy uses it of the purification of shrines.[2][5]
  • 390–406 AD – The Vulgate uses it in the ritual laws of Exodus.[3][5]
  • 749 – An Anglo-Saxon charter, in a 12th-century copy, gives land for the expiation of the donor's sins.[7]
  • early 15th century – English borrows it as expiation.[9]

Meanings

Noun

  1. An atonement, expiation.[2][3]
  2. The averting of evil omens by expiatory rites.[2]
  3. A purification.[2][8]
  4. (Ecclesiastical Latin) Atonement for sin.[6][7]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ 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
  8. ^ a b Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Expiatio.” Etymologically, 7 Nov. 2026, etymologically.com/la/expiatio. Accessed 8 Nov. 2026.

Last edited on . ·