Etymologically

Etymology and origin of the French word informer

Confidence
Established
Formation
Inherited
First attested
1174 Guernes de Pont-Sainte-Maxence, Vie de saint Thomas More words from the 12th century
Inherited from
Latin informo via Old French
Ultimate origin
Latin fōrma
Etymology tree
inherited borrowed derived
Latin fōrma
Italian forma
Spanish horma
English form
French forme
Romanian formă
German Form
Spanish forma
Latin fōrmō
French former
Romanian forma
Italian formare
Spanish formar
Latin īnfōrmō
French informer
Romanian informa
English inform
German informieren
Derivations
From the same root
Latin bifōrmis ← fōrma
Latin cōnfōrmis ← fōrma
Latin dēfōrmis ← fōrma
Latin fōrmālis ← fōrma
Latin fōrmāticum ← fōrma
Latin fōrmōsus ← fōrma
Latin fōrmula ← fōrma
Latin īnfōrmis ← fōrma
Latin triformis ← fōrma
Spanish hermoso ← fōrma
French format ← fōrmō
Latin cōnfōrmō ← fōrmō
Latin dēfōrmō ← fōrmō
Latin fōrmātiō ← fōrmō
Latin fōrmātīvus ← fōrmō
Latin refōrmō ← fōrmō
Latin trānsfōrmō ← fōrmō
Romanian înfărma ← fōrmō
Spanish transformar ← fōrmō
French formatif ← former
Romanian formare ← forma
Romanian formație ← forma
Latin īnfōrmātiō ← īnfōrmō
Latin informātīvus ← īnfōrmō
Romanian informație ← informa
Romanian informator ← informa
English informer ← inform

Pronunciation

  • /ɛ̃.fɔʁ.me/[1]

Forms

informer[1] Old French enformer, infourmer and einformer.[2][3] Anglo-Norman spellings include enfourmer, enfurmer and efformer.[4]

Etymology

It is inherited from Old French enformer (“to give a form to”), inherited from Latin īnfōrmō (“to shape, form, represent in the mind”), refashioned after the Latin word in the 15th century.[3][2][5][6][7] That verb is formed from Latin in- + fōrmō (“to form”), from fōrma (“form”).[3][6] Wiktionary treats the modern verb as borrowed from Latin.[1] The refashioning wavered in its form and prefix, as in infourmer (1286) and einformer (1351).[3][2]

Compare Occitan informar, Spanish informar and Italian informare.[8] The English verb inform (early 14th century) comes from the Old French verb and directly from Latin.[9]

Earliest recorded meaning

As enformer it is first recorded in 1174, in Guernes de Pont-Sainte-Maxence's life of Thomas Becket, meaning “to give a form to”.[2][3] Littré quotes from that text pur la pais enformer “to make the peace”.[8]

Semantic evolution

The Old French verb also meant “to instruct someone in something” (1275).[3] The refashioned verb was first reflexive, soi infourmer “to inquire” (1286), then transitive, “to let someone know” (1351), and informer que “to tell someone that” is found in 1392.[2][3] In 1538 it took the legal sense “to conduct a criminal investigation”.[2][3]

In the 16th century it took up again the Latin sense “to give a form to” (1567, Philibert de l'Orme), especially in philosophy, of the soul giving organised life to a body (1572, Amyot) and later of a spiritual principle (1617).[2][3] The sense “to question someone about something” (before 1615) did not last.[3] In the 20th century the verb was influenced by the newer senses of information.[3] In law, the past participle used as a noun gave un plus ample informé (1671) “a fuller inquiry”, whence jusqu'à plus ample informé.[3]

Timeline

  • 1174 – Enformer “to give a form to” appears in Guernes de Pont-Sainte-Maxence.[2]
  • 1275 – Enformer is used for “to instruct”.[3]
  • 1286 – Soi infourmer “to inquire” is recorded in a Picard text.[2][3]
  • 1351 – Einformer “to let someone know” appears.[2]
  • Early 14th century – English borrows the verb as enfourmen.[9]
  • 1392 – Infourmeir que “to tell someone that” is recorded.[2][3]
  • 1538 – Estienne records the legal sense “to conduct an investigation”.[2]
  • 1567 – Philibert de l'Orme uses it for “to give a form to”.[2]
  • 1572 – Amyot uses it in philosophy, of the soul.[2][3]
  • 1671 – The legal phrase plus ample informé is recorded.[3]

Meanings

Verb

  1. (philosophy) To give a form or structure to something.[10][11][2]
  2. To tell, to let someone know, to inform: informer quelqu'un de quelque chose, elle nous a informés qu'elle partait.[10][11]
  3. (law, intransitive) To conduct a criminal investigation into a fact.[11][8]
  4. S'informer: to inquire, to gather information: il s'est informé des horaires du train.[11][1]

Word family

  • informateur
  • informatif

Usage notes

The legal phrase jusqu'à plus ample informé, “until further information is available”, comes from the noun use of the past participle.[3]

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 l m n o 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
  3. ^ a b c d e f g h i j k l m n o p q r Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
  5. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ a b 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. 4, 678b
  8. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ a b Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  11. ^ a b c d Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Informer.” Etymologically, 14 Nov. 2026, etymologically.com/fr/informer. Accessed 15 Nov. 2026.

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