Etymologically

viabilité

Etymology and origin of the French word viabilité

viabilité1 condition of a road

Confidence
Established
Formation
Derivation
First attested
1836
From
Latin viabilis
Ultimate origin
Latin via

Forms

viabilité f (plural viabilités)[1]

Etymology

The word for the condition of a road is from Late Latin viābilis (“passable”), a learned formation with the suffix -ité on the stem of the Late Latin adjective, which comes from via (“way, road”).[2][3][4][5] Rey derives it instead from the old adjective viable (“easy to travel on”) (about 1790), itself an adapted borrowing of the Late Latin word, but allows that it may come straight from Late Latin.[6] Littré traced it to Latin viāre (“to travel”).[7]

Earliest recorded meaning

It is first recorded in 1836 for the state of a road fit for traffic.[2][3][6] Bloch and Wartburg and the GLLF date it to 1845, in Bescherelle.[4][5]

Semantic evolution

In town planning the word came to mean, in 1941, all the preparatory works carried out on a plot before anything is built on it: roads, drains and supply networks.[6] The GLLF dates this sense to the Larousse of 1964.[5] From it came the verb viabiliser (about 1950), “to make fit for vehicles”.[6]

Timeline

  • 1836 – First record, for the good state of a road.[2][3][6]
  • 1845 – Bescherelle records it.[5][4]
  • 1941 – Used in town planning for the works done before building.[6]
  • c. 1950 – The derived verb viabiliser appears.[6]
  • 1964 – The Larousse records the town-planning sense.[5]

Meanings

Noun

  1. The good condition of a road or way that allows traffic on it, as in viabilité hivernale.[3][8][9]
  2. (town planning) The works (roads, sewers, water and power supply) carried out on land before building: Les travaux de viabilité du lotissement sont finis.[3][8][9]
  3. Matériau de viabilité: the rock used in building roads.[8][5]

Word family

  • viabiliser

viabilité2 ability to live

Confidence
Established
Formation
Derivation
First attested
1803 Hudellet, Dissertation sur la viabilité du fœtus
Ultimate origin
Latin vīta
Etymology tree of viabilité2
inherited borrowed derived
Latin vīvō
French vivre
Italian vivere
Spanish vivir
Latin vīta
French vie
French viable
English viable
French viabilité
Italian vita
Romanian vită
Spanish vida
From the same root · viabilité2
English viva ← vīvō
Italian avaccio ← vīvō
Latin convivō ← vīvō
Latin revīvīscō ← vīvō
Latin supervīvō ← vīvō
Latin vīctus ← vīvō
Latin vīvāx ← vīvō
Latin vīvēscō ← vīvō
Latin vīvidus ← vīvō
Spanish vivaz ← vīvō
French survivre ← vivre
French vivant ← vivre
English vitamin ← vīta
Latin vītālis ← vīta
English viability ← viable

Forms

viabilité f (plural viabilités)[1]

Etymology

The word for the ability to live is formed from French viable + -ité, a learned derivative.[9][2][3][5] The adjective, recorded in 1537 of a being able to live, is itself derived from vie.[6] The FEW files the word under Latin vīta (“life”).[10]

Earliest recorded meaning

It first appears in 1803, in Hudellet's dissertation on the viability of the foetus, as a medical term for the natural ability of a foetus or newborn to live;[9][6] Nysten has it in 1814.[9][6] The GLLF dates it to Boiste, 1808.[5]

Semantic evolution

By analogy, from 1842 (Jouffroy), it was used of anything able to live and develop.[9][6][3] The GLLF dates the sense “ability of an undertaking to last” to Giraudoux, 1939.[5] English borrowed it as viability in 1823.[11] The negative inviabilité dates from the 20th century.[6]

Timeline

  • 1803 – Hudellet's dissertation on the viability of the foetus.[9][3]
  • 1808 – Boiste records it.[5]
  • 1814 – Nysten's medical dictionary has it.[9]
  • 1823 – English viability is borrowed from the French word.[11]
  • 1842 – Jouffroy uses it of whatever can live and develop.[9][3]
  • 1939 – Giraudoux uses it of an undertaking's ability to last.[5]

Meanings

Noun

  1. (medicine) The state of a foetus or newborn mature enough to live on its own.[3][9][8]
  2. (figurative) The ability of something to last and develop: On doute de la viabilité de cette réforme.[3][9][8]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  3. ^ a b c d e f g h i j k Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  4. ^ a b c Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  5. ^ a b c d e f g h i j k Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  6. ^ a b c d e f g h i j k l Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  7. ^ Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  8. ^ a b c d e Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
  9. ^ a b c d e f g h i j k 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
  10. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 14, 542a
  11. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Related etymologies

Cite this entry

“Viabilité.” Etymologically, 14 Nov. 2026, etymologically.com/fr/viabilit%C3%A9. Accessed 15 Nov. 2026.

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