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transform

Etymology and origin of the English word transform

History Permalink
Confidence
Established
Formation
Borrowing
First attested
c. 1340
Borrowed from
Old French transformer via Middle English
Ultimate origin
Latin (transformare)

Pronunciation

  • IPA: /tɹænsˈfɔːm/, /tɹɑːnsˈfɔːm/ (UK); /tɹænsˈfɔɹm/, /ˈtɹænsfɔɹm/ (US)[1]

Etymology

It is inherited from Middle English transformen, borrowed from Old French transformer and directly from Latin trānsfōrmāre, to change in shape, metamorphose,[2][3][4] from trāns-, across, beyond (see trans-), and fōrmāre, to form (see form).[2][3][5]

Earliest recorded meaning

To change the form of: about 1340, in Rolle's prose treatises;[2][6] the late 14th century in Etymonline, where it is first a supernatural change.[3]

Semantic evolution

To change the nature, character or disposition of something is by the 1550s (1556).[3][6] The intransitive sense, to undergo a change, is from 1597.[6] In mathematics, to change a figure or expression to another of equal value is first recorded in 1743,[2][6] and the noun, the result of a transformation, is from 1853.[2][5] To change one form of energy into another is from 1871,[6] to change the voltage of a current from 1883,[6] and in molecular biology to change a bacterial cell genetically from 1928.[6] Transformation is from 1410, and transformer, a person who transforms, from 1601.[2]

Timeline

  • c. 1340 – to change the form of.[2]
  • 1410 – transformation.[2]
  • 1556 – to change the character.[6]
  • 1743 – in mathematics.[2]
  • 1853 – a transform (noun).[2]
  • 1883 – to transform a current.[6]

Modern meaning

Verb

  1. To change markedly in form, appearance, nature or function.
  2. To convert one form of energy into another.
  3. To increase or decrease an electric voltage, as with a transformer.
  4. (mathematics, linguistics) To subject to a transformation.

Noun

  1. The result of a transformation, especially in mathematics or linguistics.

Word family

  • transformable
  • transformative
  • nontransforming
  • retransform
  • transformer
  • Fourier transform
  • Laplace transform

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ a b Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b c d e f g h i Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press

Related etymologies

Cite this entry

“Transform.” Etymologically, 17 Oct. 2026, etymologically.com/en/transform. Accessed 17 Oct. 2026.

Last edited on . ·