Etymologically

réfléchir

Etymology and origin of the French word réfléchir

Confidence
Established
Formation
Borrowing
First attested
late 12th century, Dialogues of Gregory (reflekir)
Borrowed from
Latin reflecto
Ultimate origin
Latin (flectō)
Etymology tree
inherited borrowed derived
Latin reflecto
French réfléchir

Pronunciation

  • IPA: /ʁe.fle.ʃiʁ/[1]

Forms

réfléchir[1] Reflekir (late 12th century), reflechir (about 1278), Old Burgundian reflenchir; the Académie wrote refleschir in 1694 and 1718, réfléchir from 1740.[2][3]

Etymology

It is borrowed from Latin reflectō (“to bend back; to turn back; to turn one's mind to”), adapted after fléchir.[3][2][4][5][1][6] The Latin verb is formed from re- (“back”) and flectō (“to bend”); in Medieval Latin it also meant to reflect, of a mirror (about 1240).[3][2] The sense “to think” goes back to Latin “reflectere animum” “to turn the mind back”.[7][8]

Compare Old Occitan reflectir, Spanish reflectir and Italian riflettere.[7]

Earliest recorded meaning

At the end of the 12th century reflekir, in the Dialogues of Gregory, means to direct the eye or the mind; in Jean de Meun's Roman de la Rose (1269–78) reflechir is to send back by reflection.[5][2][3]

Semantic evolution

In anatomy se reflechir meant to bend back on itself (Henri de Mondeville, 1314), a use that lasted into the 16th century (Paré).[3][7][8] The optical sense grew in importance in the 17th century with the science of optics, and it was applied to sound in 1718.[2]

The intellectual sense, “to think carefully”, is found in Bossuet (1672), after an isolated se reflechir “to meditate” (1609); Bouhours still preferred faire réflexion.[3][8][2] It spread in the 18th century to become the main sense, with réfléchir sur (1675) and réfléchir à (1701).[2] Verbes réfléchis (reflexive verbs) is a grammatical term from 1701.[3]

Timeline

  • Late 12th century – Reflekir, to direct the mind.[5]
  • 1269–78 – Optical sense, Jean de Meun.[3]
  • 1314 – In anatomy, Henri de Mondeville.[3]
  • 1609 – Se reflechir, to meditate.[3]
  • 1672 – “To think carefully”, Bossuet.[3]
  • 1701 – Verbes réfléchis.[3]
  • 1786 – Irréfléchi.[8]

Meanings

Verb

  1. To reflect, send back light, an image or sound: le miroir réfléchit l'image, se réfléchir, to be reflected.[9][5][1]
  2. (intransitive) To think, ponder: réfléchir avant d'agir, réfléchir à, sur, cela donne à réfléchir.[9][1][2]
  3. Réfléchir que: to consider, realize that.[1][2]
  4. Tout bien réfléchi: all things considered.[1][2]

Word family

  • réfléchi
  • réfléchissant
  • réfléchissement
  • irréfléchi
  • reflet
  • fléchir
  • réflexion
  • réflexe
  • Latin reflectō

References

  1. ^ a b c d e f g 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 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
  4. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ a b c d Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  6. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 10, 190a
  7. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  8. ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  9. ^ a b Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Réfléchir.” Etymologically, 18 Oct. 2026, etymologically.com/fr/r%C3%A9fl%C3%A9chir. Accessed 18 Oct. 2026.

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