Etymology and origin of the French word fossé
- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 1100 Chanson de Roland More words from the 11th century
- Inherited from
- Latin fossatum via Old French
- Ultimate origin
- Latin fodiō
Forms
fossé m (plural fossés)[1] Old French fosset, remade as fossé in the 12th century.[2][3]
Etymology
It is inherited from Old French fosset, inherited from Late Latin fossātum (“ditch”), the noun use of the past participle of fossō (“to dig”), a frequentative of fodiō (“to dig”).[4][2][3] The Robert dictionaries connect it with fossa (“ditch, pit”), the source of fosse.[5][6] The same Latin verb gave fouir.[3]
Cognate with Old Occitan fossat and Italian fossato.[7][8]
Earliest recorded meaning
It is first found about 1100 in the Chanson de Roland, as fosset: E Mahumet enz en un fosset butent “and they throw Mahomet into a ditch”, of the Saracens' idol.[4][8]
Semantic evolution
The word names a long trench dug in the ground to carry off water or to mark off land, and in 1629 one dug for defence round a fortification.[2][3] In Anglo-Norman it covered a wide range: a ditch or moat, a dike, an embankment or hedge, a pit or grave, and even Hadrian's Wall.[9]
Keeping the idea of an obstacle, it came to mean a divergence of views, a gulf between people (1916, Louis Hémon), as in le fossé des générations.[4][2][6] Figurative phrases include sauter le fossé “to make up one's mind at last” (1690)[2][8] and the proverb au bout du fossé, la culbute, recorded by d'Hautel in 1808.[10][3]
Timeline
- c. 1100 – Fosset appears in the Chanson de Roland.[4]
- 12th century – The form fossé replaces fosset.[2][3]
- 1629 – Mairet uses it for a defensive ditch.[3][2]
- 1690 – Sauter le fossé “to take the plunge” is recorded.[2]
- 1808 – D'Hautel records au bout du fossé, la culbute.[10]
- 1916 – Louis Hémon uses it for a divergence of views, in Maria Chapdelaine.[4][2]
Meanings
Noun
- A ditch, a long trench dug in the ground for drainage or to separate plots of land: Le camion a fini dans le fossé.[6][4]
- (fortification) A moat, a trench surrounding a fortified work;[6][3] fossé antichar, an anti-tank ditch.[6][3]
- (geology) A strip of sunken ground bounded by faults, a rift valley: fossé tectonique.[6]
- (figurative) A gulf, a divide between people or groups: le fossé des générations.[6][2]
Related words
Usage notes
Littré notes the pronunciations /foˈse/ and /fɔˈse/, and that in the 16th century Henri Estienne remarked that the o of fosse was long and that of fossé short.[8]
References
- ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b c d e f g h i Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ a b c d e f 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
- ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
- ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
- ^ a b 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
“Fossé.” Etymologically, 11 Nov. 2026, etymologically.com/fr/foss%C3%A9. Accessed 12 Nov. 2026.
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