Etymologically

neutraliser

Etymology and origin of the French word neutraliser

Confidence
Established
Formation
Derivation
First attested
1564 Thierry More words from the 16th century
From
Latin neutralis
Ultimate origin
Latin neuter
Etymology tree
inherited borrowed derived
Latin uter
Italian otre
French outre
Latin neuter
English neuter
Latin neutrālis
English neutral
French neutraliser
English neutralize
From the same root
Latin alteruter ← uter
Latin uterque ← uter
Latin utrum ← uter
English neutrino ← neuter
Latin neutrālitās ← neutrālis
Spanish neutralidad ← neutrālis
English neutron ← neutral

Forms

neutraliser[1] Middle French se neutralizer (1564); neutralizer is also recorded by Cotgrave.[2][3]

Etymology

It is from Latin neutrālis (“neutral”), a learned formation with the suffix -iser.[2][4][5] The Latin adjective is from neuter (“neither”).[5][6] In Medieval Latin there was the participle neutralisatus (“not taking sides”), recorded in 1411.[2] Littré instead derived the verb from the old French adjective neutral, meaning “of a neutral nature”.[3] Picoche places it in the family of neutre, beside neutralité.[7]

Earliest recorded meaning

It is first recorded in 1564 in Thierry's dictionary as the reflexive se neutralizer, meaning “to remain neutral”, to favour neither side.[2][4][5]

Semantic evolution

The modern senses appeared only in the second half of the 18th century: in chemistry it meant “to cancel the properties of” an acid or base (1776), and in general use “to make harmless” (1789, Sieyès); the reflexive came to mean “to cancel each other out” (1803).[4][2] In 1812 it was used in military language for preventing an army from acting, and in international law for guaranteeing the neutral status of a territory.[2][4] Linguists have used it since 1939 for the loss of an opposition between sounds in some positions.[2][4][8]

English neutralize is recorded from 1734 in a chemical sense, taken from the French verb; its old intransitive sense “to remain neutral” (1660s) is now obsolete.[9]

Timeline

  • 1564 – Thierry records se neutralizer “to remain neutral”.[2][5]
  • 1606 – The spelling se neutraliser is found in Crespin.[5]
  • 1734 – English neutralize is recorded.[9]
  • 1776 – First chemical use, in the supplement to the Encyclopédie.[2][5]
  • 1789 – Sieyès uses it for “to make harmless”.[2][4]
  • 1803 – The reflexive “to cancel each other out” appears in Maine de Biran.[2]
  • 1812 – Mozin records the military sense and the sense “to make a territory neutral”.[2][4]
  • 1939 – André Martinet uses it in linguistics.[2]

Meanings

Verb

  1. (politics, law) To give a state or territory neutral status, keeping it out of a conflict.[8][2]
  2. (chemistry) To make an acid or base neutral by combining it with the other: neutraliser un acide par une base.[8][3]
  3. To cancel or counteract the effect of something, such as one colour or force by another.[8][10]
  4. To prevent someone or something from acting, to make harmless: la police a neutralisé le tireur.[8][5]
  5. (military) To stop enemy forces from acting, for instance by cutting their communications.[2][5]
  6. (linguistics) Of an opposition between sounds, to be suspended in certain positions.[8][2]

Word family

  • neutralisation
  • neutralisable
  • neutralisant

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p 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 Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  4. ^ a b c d e f g Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  5. ^ a b c d e f g h Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  6. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  7. ^ Picoche, Jacqueline (1991), Dictionnaire étymologique du français, Paris: Le Robert (Les Usuels du Robert)
  8. ^ a b c d e f Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)

Related etymologies

Cite this entry

“Neutraliser.” Etymologically, 14 Nov. 2026, etymologically.com/fr/neutraliser. Accessed 15 Nov. 2026.

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