- Confidence
- Established
- Formation
- Borrowing
- First attested
- c. 1300, Jean de Meun, Consolation de Boèce
- Borrowed from
- Latin transformo
- Ultimate origin
- Latin (forma)
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
- To transform, change the form or character of: transformer une maison, transformer une matière première, to process it.[7][1]
- To change (someone) visibly for the better: son séjour à l'étranger l'a transformé.[7]
- Transformer en: to turn into: Circé transforma les compagnons d'Ulysse en pourceaux.[3]
- (reflexive) Se transformer: to change, be turned (into something).[5][1]
- (mathematics) To change (an equation or figure) into an equivalent one.[5][3]
- (rugby) Transformer un essai: to convert a try.[5][2]
Word family
- transformateur
- transformable
- transformée
- transformisme
Related words
- transformation
- former
- forme
- Latin trānsfōrmō
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b c d e f Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ 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
- ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ 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.
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