Etymologically

fils

Etymology and origin of the French word fils

Confidence
Established
Formation
Inherited
First attested
2nd half of the 10th century, Vie de saint Léger
Inherited from
Latin filius via Old French
Ultimate origin
Latin (fīlius)
Etymology tree
inherited borrowed derived
Latin filius
French fils
Latin filiaster

Pronunciation

  • IPA: /fis/[1]
  • IPA (Quebec): /fɪs/[1]
  • IPA (archaic): /fi/[1]

Forms

fils m (invariable)[1] Old French subject case fils, fiz, object case fil, Picard fieu.[2][3][4] The s is pronounced (/fis/); the older pronunciation /fi/ lasted until the 19th century.[5][1]

Etymology

It is inherited from Old French fils, inherited from Latin fīlius (“son, child”).[6][2][4][7][1] The modern form is the Old French subject case, kept because it was often used as a vocative, and probably also to avoid confusion with fil “thread”.[6][4]

Latin “fīlius”, like fēcundus, goes back to an Indo-European root “*dhē-” “to suck”; it first meant “nursling” and replaced the old Indo-European word for “son”.[2][8][3] Cognate with Romanian fiu, Italian figlio, Occitan filh, Catalan fill, Spanish hijo and Portuguese filho.[8][9]

Earliest recorded meaning

It is first found in the second half of the 10th century in the Vie de saint Léger, for a male child considered in relation to his parents; the Passion of Clermont (late 10th century) has fils Deu, the Son of God.[6][2]

Semantic evolution

In the early 12th century it also meant descendants, as in li fil des humes “the sons of men” (Oxford Psalter).[6][2] From about 1196 it was used for any boy, without displacing garçon; it survives as a form of address (mon fils !), especially in the south of France.[2][10]

Fils de famille dates from 1606, fils à papa is more recent.[2] The old pronunciation /fi/ gave insults such as fi de garce.[2] The diminutive fiston dates from 1585, beau-fils from 1468 and petit-fils from the 13th century.[2]

Timeline

  • 2nd half of the 10th century – Fils in the Vie de saint Léger.[6]
  • Late 10th century – Fils Deu in the Passion of Clermont.[6]
  • Early 12th century – Li fil des humes, descendants.[6]
  • 13th century – Petit-fils.[2]
  • 1468 – Beau-fils.[2]
  • 1585 – Fiston.[2]
  • 1606 – Fils de famille.[2]

Meanings

Noun

  1. A son: il a deux fils, fils unique.[8][1]
  2. After a surname: junior: Dumas fils.[8][1]
  3. (literary) A descendant: les fils des Gaulois; a native: un fils du pays.[11]
  4. Le Fils: the Son, the second person of the Trinity, le Fils de l'homme.[1][2]
  5. (form of address) Mon fils: my boy.[2]

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  3. ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  4. ^ a b c Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ a b c d e f g 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
  7. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 3, 521a
  8. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  10. ^ Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  11. ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)

Related etymologies

Cite this entry

“Fils.” Etymologically, 18 Oct. 2026, etymologically.com/fr/fils. Accessed 18 Oct. 2026.

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