Etymologically

Etymology and origin of the French word trimestre

Confidence
Established
Formation
Borrowing
First attested
1564 Liébault, Maison rustique More words from the 16th century
Borrowed from
Latin trimestris
Ultimate origin
Latin trimestris
Etymology tree
inherited borrowed derived
French trimestre
English trimester

Pronunciation

  • /tʁi.mɛstʁ/[1]

Forms

trimestre m (plural trimestres)[1]

Etymology

It is borrowed from Latin trimestris (“of three months, lasting three months”), first used as an adjective.[2][3][4] The Latin adjective is formed from tri- (“three”) and mēnsis (“month”);[3][5][6] its neuter plural trimestria named seed crops that ripen three months after sowing.[3] Bloch and Wartburg date the borrowing to 1562, the TLFi and the FEW to 1564.[7][2][8] The older trémois “wheat sown in March”, from Latin trimēnsis, was used beside it.[3]

Earliest recorded meaning

It is first recorded in 1564 in Liébault's Maison rustique as an adjective describing wheat that grows in three months.[2][3][6]

Semantic evolution

As an adjective it was extended to an office held for three months (1596) and to a company whose officers served in turns of three months (1765).[2][3] Modern French uses it only as a noun, recorded by the Académie in 1718 for a period of three months, especially one of the four quarters of the year.[2][3] Since 1832 (Balzac) it has also named a division of the school year.[3] By metonymy it has meant since 1825 a sum paid or received every three months.[2][3][9]

English trimester is recorded from 1821, from the French word.[10]

Timeline

  • 1564 – Liébault uses it of wheat that grows in three months.[2][3]
  • 1596 – Hulsius records it of an office lasting three months.[2][6]
  • 1718 – The Académie records the noun “period of three months”.[2][3]
  • 1765 – It is used of a company serving in three-month turns.[3]
  • 1821 – English trimester is recorded.[10]
  • 1825 – Dumas uses it for a sum paid every three months.[2][9]
  • 1831 – The adjective trimestriel is formed.[3][7]
  • 1832 – Balzac uses it for a division of the school year.[3]

Meanings

Noun

  1. A period of three months, especially one of the four quarters of the year: le dernier trimestre de l'année.[11][2][5]
  2. (education) A term of the school year.[11][1]
  3. A sum paid or received every three months, such as a quarter's rent or pay.[11][5][2]
  4. (of pregnancy) A trimester.[1]

Word family

  • trimestriel
  • trimestriellement
  • quadrimestre
  • semestre
  • bimestre
  • trémois
  • mois
  • Latin trimestris
  • English trimester

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 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 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  6. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  7. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  8. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 13/2, 275b
  9. ^ a b Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF
  10. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  11. ^ a b c Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Trimestre.” Etymologically, 14 Nov. 2026, etymologically.com/fr/trimestre. Accessed 15 Nov. 2026.

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