Etymologically

reformatio

Etymology and origin of the Latin word reformatio

Confidence
Established
Formation
Derivation
First attested
4 BC–65 AD Seneca, Epistulae morales
Ultimate origin
Latin refōrmō
Etymology tree
inherited borrowed derived
Latin fōrma
Italian forma
English form
French forme
German Form
Spanish forma
Latin fōrmō
French former
Spanish formar
Latin refōrmō
Latin refōrmātiō
English reformation
From the same root
Latin bifōrmis ← fōrma
Latin dēfōrmis ← fōrma
Latin fōrmālis ← fōrma
Latin formaticum ← fōrma
Latin fōrmōsus ← fōrma
Latin fōrmula ← fōrma
Latin īnfōrmis ← fōrma
Latin triformis ← fōrma
Spanish hermoso ← fōrma
Latin cōnfōrmō ← fōrmō
Latin dēfōrmō ← fōrmō
Latin fōrmātiō ← fōrmō
Latin īnfōrmō ← fōrmō
Latin trānsfōrmō ← fōrmō
Spanish transformar ← fōrmō

Forms

refōrmātiō f (genitive refōrmātiōnis); third declension[1]

Etymology

It is from Latin refōrmō + -tiō, a noun of action from the verb meaning “to reshape, transform”.[2][1][3] The verb is formed from re- and fōrmō (“to shape”), from fōrma (“form, shape”);[4][5] for ⟨fōrma⟩ de Vaan considers a dissimilated older ⟨*morma⟩ and a possible borrowing shared with Ancient Greek μορφή (morphḗ, “form, shape”), and leaves the question open.[5]

Earliest recorded meaning

Seneca has it in the moral sense, the reform of character (reformatio morum) in his letters to Lucilius.[2][6][7]

Semantic evolution

It was a rare word in Classical Latin.[6] Besides Seneca's moral reform, Apuleius used it in his Metamorphoses of a bodily change, a metamorphosis into an ass.[2][6] The glossaries give it as an equivalent of Ancient Greek μεταμόρφωσις (metamórphōsis).[3]

The TLL notes that after Seneca and Apuleius it occurs above all in Christian writers,[3] and Augustine used it of renewal.[8] In medieval Britain it was the amendment or reform of a church or monastery, a frequent term in visitations from the 13th century,[9] and in Italy it also named a civic ordinance.[10] English borrowed it in the late 14th century as reformation.[4]

Timeline

  • 4 BC–65 AD – Seneca speaks of the reform of character.[2][7]
  • c. 125–175 AD – Apuleius uses it of a transformation into an ass.[2][7]
  • 354–430 AD – Augustine uses it of renewal.[8][7]
  • 1223 – A Salisbury charter names reform among the duties of visitors.[9]
  • late 14th century – English borrows it as reformation.[4]

Meanings

Noun

  1. A transformation, reshaping, of a bodily change.[2][6]
  2. Reform or improvement, as of character.[2][6]
  3. (Late Latin) Renewal.[8]
  4. (Medieval Latin) Amendment or reformation, as of a church or monastery.[9][11]
  5. (Medieval Latin) An ordinance on civic order.[10]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g 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 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  8. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  9. ^ 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
  10. ^ a b du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre
  11. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson

Borrowed into

Cite this entry

“Reformatio.” Etymologically, 7 Nov. 2026, etymologically.com/la/reformatio. Accessed 7 Nov. 2026.

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