Etymology and origin of the French word tertiaire
- Confidence
- Established
- Formation
- Borrowing
- First attested
- 1641 More words from the 17th century
- Borrowed from
- Latin tertiarius
- Ultimate origin
- Latin tertius
Etymology tree
From the same root
Pronunciation
- /tɛʁ.sjɛʁ/[1]
Forms
tertiaire (plural tertiaires)[1]
Etymology
It is borrowed from Latin tertiārius (“containing a third, of a third”),[2][3][1] from tertius (“third”).[2][3][4] The geological term (1779) was formed on the model of primaire and secondaire.[3][5][6] The religious sense, “member of a third order”, is a separate borrowing from Church Latin tertiārius, a specialization of the classical word, applied to the third order (ordō (“order”));[2][3][7] it was first adapted as tierçaire (1690).[2][7] The economic sense follows the English tertiary of English-speaking economists.[3]
Earliest recorded meaning
The DHLF dates the religious word to 1641, for a member of a third order, a lay congregation affiliated with a religious order.[3] The geological adjective is first found in 1779 in Horace-Bénédict de Saussure's Voyages dans les Alpes, in montagnes tertiaires.[2][3]
Semantic evolution
In geology it was first applied to terrains and rocks formed in an era following those just named primary and secondary, and then to that era itself.[3] Brongniart made the geological sense more precise in 1807,[3][5] terrains tertiaires is found in Humboldt in 1823, période tertiaire in 1845–1846, and the noun le tertiaire in 1882.[2][3]
Medicine took it for the third phase of a disease, especially of syphilis (1910).[2][3] In economics it names, from about 1950, the sector of services, management and organization, set against the primary (agriculture) and secondary (industry) sectors: biens tertiaires is recorded in 1952 and secteur tertiaire in 1955.[2][3] As a noun it also came to mean a person working in this sector (1959 according to the DHLF, 1968 according to the TLFi).[3][2]
Timeline
- 1641 – Borrowed as a term of religion, for a member of a third order.[3]
- 1690 – Furetière records the religious word in the form tierçaire.[2][7]
- 1779 – Saussure writes of montagnes tertiaires.[2][3]
- 1807 – Brongniart makes the geological sense more precise.[3][5]
- 1812 – The religious noun is recorded as tertiaire.[2][7]
- 1882 – Le tertiaire is used as a noun for the geological era.[2][3]
- 1910 – Medicine applies it to the third stage of syphilis.[2][3]
- 1952 – Fourastié writes of biens tertiaires in economics.[2]
- 1955 – Secteur tertiaire is recorded.[2][8]
Meanings
Adjective
- (geology) Of the Tertiary era, between the Secondary and the Quaternary;[2][6] le Tertiaire: that era.[2][6]
- (medicine) Forming the third phase of a disease: une syphilis tertiaire.[2][6]
- (economics) Secteur tertiaire: the service sector of the economy, beside the primary and secondary sectors; also le tertiaire.[2][6][3]
- Occupying the third rank.[4]
Noun
- (Catholicism) A member of a third order, a lay congregation affiliated with a religious order.[2][3]
- (economics) A person who works in the service sector.[2][3]
Word family
- tertiarisation
Related words
- tiers
- primaire
- secondaire
- quaternaire
- Latin tertius
Usage notes
The DHLF treats the religious word and the geological word as two separate entries, both borrowed from Latin tertiārius at different times.[3] Littré also records it in botany for a branching of the third degree.[4]
References
- ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t u v 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
- ^ a b c d e f g h i j k l m n o p q r s t u v Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ a b c Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
- ^ a b c d Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF
Related etymologies
Cite this entry
“Tertiaire.” Etymologically, 15 Nov. 2026, etymologically.com/fr/tertiaire. Accessed 15 Nov. 2026.
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