Etymologically

sept

Etymology and origin of the French word sept

Confidence
Established
Formation
Inherited
First attested
late 10th century, Passion de Clermont
Inherited from
Latin septem via Old French
Ultimate origin
Latin (septem)
Etymology tree
inherited borrowed derived
Latin septem
French sept

Pronunciation

Forms

sept (invariable)[1] Old French sep (about 980) and set (about 1050); sept is a spelling remade after the Latin word, from the end of the 12th century.[2][3][4]

Etymology

It is inherited from Old French set, inherited from Latin septem (“seven”).[5][2][6][7][1] The ⟨p⟩ is an etymological spelling and has never been pronounced.[5][6][8] The Latin word has exact counterparts in Ancient Greek ἑπτά (heptá), Sanskrit सप्त (saptá) and Old Irish secht;[2] Wiktionary traces it to Proto-Indo-European *septḿ̥.[1]

Cognate with Italian sette, Occitan set, Catalan set, Spanish siete, Portuguese sete and Romanian șapte.[9][8]

Earliest recorded meaning

The Clermont Passion (late 10th century) has the cardinal sep; the Vie de saint Alexis (about 1050) has dis e set anz “seventeen years”.[5]

Semantic evolution

From the 12th century the number appears in phrases with a symbolic value, such as les Sept Sages de Rome, the seven sacraments and the Seven Wonders of the World; it combines with other numerals from 1273.[2][3] As a noun it names the number (1580, Palissy), a throw at dice (1663–64, Boileau) and a playing card (1694, Académie).[5][2] In the classical language être dans son sept meant to be in the seventh month of pregnancy or on the seventh day of an illness (Académie, 1718 and 1740).[2][10] Its ordinal use, Charles sept, and le sept du mois are recorded from 1718.[5]

Timeline

  • Late 10th century – Sep in the Clermont Passion.[5]
  • c. 1050 – Set in the Vie de saint Alexis.[5]
  • Late 12th century – The spelling sept.[3]
  • 1580 – Used as a noun, the number seven, by Palissy.[5]
  • 1694 – The Académie records the playing card.[5][10]
  • 1718 – Ordinal use (Charles sept) and le sept du mois.[5]

Meanings

Numeral

  1. seven: les sept jours de la semaine, sept cents.[11][1]
  2. Seventh, in dates and the names of rulers: le sept mai, Charles VII.[11][5]

Noun

  1. The number seven; the figure 7.[11]
  2. A playing card with seven pips: le sept de cœur.[5][11]

Word family

  • septième

Usage notes

Before a consonant the final /t/ was formerly silent (sè livres), as Littré still records; it is now pronounced in all positions, which keeps sept apart from ses and ces.[5][8]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b c Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  4. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ a b c d e f g h i j k l m 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
  6. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  7. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 11, 478b
  8. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  10. ^ a b Quemada, Bernard, ed. (1959–2006), Datations et documents lexicographiques (Base historique du vocabulaire français, BHVF), Paris: Klincksieck / CNRS / Champion; ATILF
  11. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Sept.” Etymologically, 18 Oct. 2026, etymologically.com/fr/sept. Accessed 18 Oct. 2026.

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