Etymologically

Etymology and origin of the French word projeter

Confidence
Established
Formation
Derivation
First attested
c. 1120 Psautier de Cambridge More words from the 12th century
Ultimate origin
Latin porro,iactō
Derivations

Pronunciation

  • /pʁɔʒ.te/[1]

Forms

projeter[1] Old French porjeter, purjeter;[2][3][4] Middle French pourjecter, then projecter in the 16th century.[2][3][4]

Etymology

It is a refashioning, with the Latin prefix prō-, of Old French porjeter (“to throw out, far, forward”), formed from Old French puer (“forward, far away”) + jeter (“to throw”).[2][5][6][7] The adverb puer, unstressed por, is from Latin porro (“forward, further”).[2][5] From the 15th century the prefix por-, pour- was latinised, which brought the verb into line with projection.[2][5] Bloch and Wartburg see the Old French verb as formed on the model of Latin prōiciō (“to throw forth”),[5] and Wiktionary says the Old French verb owed something to the same Latin word, since the two prefixes were nearly always interchangeable;[1] the Grand Robert and the Petit Robert compare Late Latin projectāre.[8][9]

Earliest recorded meaning

Old French purjeter is found in the Psautier de Cambridge (about 1120) meaning “to throw out, cast away”.[6][3][2] The modern verb begins with Middle French pourjecter in accounts of 1386–1394, “to draw up a first statement (of accounts)”.[4][2]

Semantic evolution

About 1400 pourjeter took the military sense “to form a precise idea of something by reconnaissance”, whence Froissart's pourjeter une embusque “to lay an ambush”.[5][10] In the 15th century it acquired its general sense “to conceive a plan”, first recorded in 1452 of a building, while the prefix was latinised.[5][4][10] This sense goes back to the abstract use of jeter in phrases such as jeter sentence and to its sense “to make a draft” (1334).[2] In the 16th century it also meant “to set down in writing beforehand” (1569).[4][2]

The physical sense “to throw forward with force” appears with Buffon (1774), and its figurative use “to project (an idea) outside oneself” with Victor Cousin (1829).[4] Geometry used it from 1762 for drawing a projection, recorded by the Académie.[4][6] Its use for casting light or an image onto a surface dates from 1788, and onto a screen from 1932.[6] Psychology later took it up for attributing one's own feelings to someone else.[9]

Timeline

  • c. 1120 – Purjeter “to throw out” appears in the Psautier de Cambridge.[6][3]
  • 1334 – Jeter is used for drafting a letter or treaty.[2]
  • c. 1360 – Froissart writes of preparing an ambush with pourjeter.[6][5]
  • 1386–1394 – Pourjecter des comptes “to draw up accounts” is recorded.[4]
  • 1452 – A charter uses it of planning a building.[4][10]
  • 1569 – Martin du Bellay writes projecter les points et articles.[4][11]
  • 1762 – The Académie records the sense in geometry.[4]
  • 1774 – Buffon uses it for throwing forward with force.[4]
  • 1788 – Barthélemy uses it for casting light or a shadow.[6]
  • 1829 – Cousin uses it for projecting an idea into the outer world.[4]

Meanings

Verb

  1. To throw forward with force, to hurl: projeté à terre[9][4][1]
  2. (geometry) To draw the projection of a point, line or surface on a plane.[9][11]
  3. To cast light, a shadow or an image on a surface; to show a film or photographs.[9]
  4. (psychology) To attribute to someone else a feeling or state one has oneself.[9]
  5. To plan, to intend: projeter un voyage, projeter d’aller.[9][1]

Word family

  • jeter
  • projection
  • Old French porjeter

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c d Tobler, Adolf; Lommatzsch, Erhard (1925–2002), Altfranzösisches Wörterbuch, 11 vols., Berlin / Wiesbaden / Stuttgart: Weidmann / Steiner
  4. ^ a b c d e f g h i j k l m n 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
  5. ^ a b c d e f g Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  6. ^ a b c d e f g Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  7. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 5, 21b
  8. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  9. ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  10. ^ a b c Godefroy, Frédéric (1881–1902), Dictionnaire de l'ancienne langue française et de tous ses dialectes du IXe au XVe siècle, 10 vols., Paris: Vieweg / Bouillon
  11. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
Cite this entry

“Projeter.” Etymologically, 15 Nov. 2026, etymologically.com/fr/projeter. Accessed 15 Nov. 2026.

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