Etymologically

transformer

Etymology and origin of the French word transformer

Confidence
Established
Formation
Borrowing
First attested
c. 1300, Jean de Meun, Consolation de Boèce
Borrowed from
Latin transformo
Ultimate origin
Latin (forma)
Etymology tree
inherited borrowed derived
Latin transformo
French transformer

Pronunciation

  • IPA: /tʁɑ̃s.fɔʁ.me/[1]

Forms

transformer[1] Old French tresformer, a more popular form used from the 12th to the 14th century.[2][3][4]

Etymology

It is a learned remaking (about 1300) of Old French tresformer, borrowed from Latin trānsfōrmō (“to change in shape, metamorphose”).[2][5][3] The Latin verb is formed from trāns (“across, beyond”) and fōrmō (“to shape”), from fōrma (“form”).[2][5]

The Latin word also gave Occitan transformar, Spanish transformar and Italian trasformare.[6]

Earliest recorded meaning

Jean de Meun's translation of Boethius (about 1300) uses it for giving a person or thing a new form, and transformer en for making something take the form or nature of another.[5]

Semantic evolution

The pronominal se transformer is found early in the 14th century, in the Ovide moralisé.[5][2] From about 1370 (Oresme) it was used of any thorough change, concrete or abstract, as when sermons cannot transformer et convertir à bien such people.[2][6]

It took special uses in mathematics, transformer une équation (1755, Encyclopédie), and in rugby, transformer un essai “to convert a try” (1891).[5][2] Its derivatives include transformable (1555), transformateur (1575; in electricity from 1842, shortened to transfo) and transformisme (1867, Broca), the theory of evolution by successive changes.[2]

Timeline

  • 12th century – Tresformer, in the Dialogues de saint Grégoire.[3]
  • c. 1300 – Transformer, in Jean de Meun.[5][3]
  • early 14th century – Se transformer, in the Ovide moralisé.[5]
  • 1375 – The noun transformation is borrowed.[2]
  • 1755 – Transformer une équation, in the Encyclopédie.[5]
  • 1842 – Transformateur in electricity.[2]
  • 1867 – Transformisme, in Broca.[2]
  • 1891 – Transformer un essai in rugby.[5]

Meanings

Verb

  1. To transform, change the form or character of: transformer une maison, transformer une matière première, to process it.[7][1]
  2. To change (someone) visibly for the better: son séjour à l'étranger l'a transformé.[7]
  3. Transformer en: to turn into: Circé transforma les compagnons d'Ulysse en pourceaux.[3]
  4. (reflexive) Se transformer: to change, be turned (into something).[5][1]
  5. (mathematics) To change (an equation or figure) into an equivalent one.[5][3]
  6. (rugby) Transformer un essai: to convert a try.[5][2]

Word family

  • transformateur
  • transformable
  • transformée
  • transformisme

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d e f Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  4. ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ a b c d e f g h i j k l Trésor de la langue française informatisé (2004), ATILF – CNRS & Université de Lorraine, atilf.fr/tlfi; electronic version of Imbs, Paul; Quemada, Bernard, eds. (1971–1994), Trésor de la langue française, Paris: CNRS / Gallimard
  6. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  7. ^ a b Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Transformer.” Etymologically, 18 Oct. 2026, etymologically.com/fr/transformer. Accessed 18 Oct. 2026.

Last edited on . ·