Etymologically

Etymology and origin of the French word adjoindre

Confidence
Established
Formation
Inherited
First attested
1150–1200 Dialogues of Gregory More words from the 12th century
Inherited from
Latin adiungo via Old French
Ultimate origin
Latin iungō
Etymology tree
inherited borrowed derived
Latin iungō
French joindre
Italian giungere
Spanish uncir
Latin adiungō
French adjoindre
Italian aggiungere
Romanian ajunge
From the same root
English joiner ← iungō
French joint ← iungō
Italian giunta ← iungō
Latin abiungō ← iungō
Latin coniungō ← iungō
Latin coniūnx ← iungō
Latin disiungō ← iungō
Latin iniungō ← iungō
Latin iūmentum ← iungō
Latin iūncta ← iungō
Latin iūnctiō ← iungō
Latin iūnctūra ← iungō
Latin iūnctus ← iungō
Latin sēiungō ← iungō
Latin subiungō ← iungō
Old French joint ← iungō
French rejoindre ← joindre
Italian giunto ← giungere
English adjoin ← adiungō
Latin adiūnctus ← adiungō
Italian aggiunto ← aggiungere
Italian raggiungere ← aggiungere

Pronunciation

  • /ad.ʒwɛ̃dʁ/[1]

Forms

adjoindre[1] Old French ajoindre, still current in the 16th century; the spelling with ⟨d⟩ dates from the 14th century.[2][3][4]

Etymology

It is inherited from Old French ajoindre, inherited from Latin adiungō (“to join to, add”), respelled with ⟨d⟩ after the written Latin form from the 14th century.[2][3][4][1] The Latin verb is formed from ad- (“to”) and iungō (“to join”), the source of joindre.[3][5]

Cognate with Italian aggiungere; in the Gallo-Romance dialects the verb often means “to reach”, like Romanian ajunge.[4]

Earliest recorded meaning

The first record, in the Old French Dialogues of Gregory (second half of the 12th century), has ajoindre meaning “to add”; at the end of the century it meant “to unite”, and about 1200 the reflexive s'ajoindre “to join oneself (to something)”.[2]

Semantic evolution

In Old and Middle French ajoindre meant “to add” and “to unite”, and was used intransitively for “to be next to” (about 1300).[3] Until the 17th century its sense differed little from that of joindre.[4] The relatinised form came to be used for putting people together with others, whence s'adjoindre à quelqu'un (1538); Oresme used it for joining one thing to another.[3]

The past participle adjoint was used as a noun for an ally or associate (1337) and later took specialised senses in law (1549), local administration (the deputy mayor, 1795) and the army (1825).[3][2] In modern French the verb mainly means to assign someone as a helper, and in the 19th century it took up again the old sense of adding one thing to another.[6]

Timeline

  • 8th century – A Romance form adjungeat “he joins” is found.[3][7]
  • 1150–1200 – Ajoindre “to add” appears in the Dialogues of Gregory.[2]
  • c. 1200 – Reflexive s'ajoindre “to join (something)”.[2]
  • c. 1300 – Intransitive ajoindre à “to be adjacent to”.[3]
  • 1337 – The noun adjoinct shows the relatinised spelling.[2][3]
  • 1538 – S'adjoindre à quelqu'un “to join someone”.[3]
  • 16th century – The form ajoindre is still in common use.[4]

Meanings

Verb

  1. (transitive) To give someone as an assistant or associate to another person: on lui a adjoint deux secrétaires.[6][2][8]
  2. (reflexive) S'adjoindre quelqu'un: to take someone on as a collaborator.[6][5]
  3. (transitive) To add or attach one thing to another.[6][8]

Word family

  • adjoint

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ a b c d e Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  6. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  7. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  8. ^ a b Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse

Related etymologies

Cite this entry

“Adjoindre.” Etymologically, 14 Nov. 2026, etymologically.com/fr/adjoindre. Accessed 15 Nov. 2026.

Last edited on . ·