Etymologically

Etymology and origin of the French word obésité

Confidence
Established
Formation
Borrowing
First attested
1550 H. Fierabras, Méthode chirurgicale More words from the 16th century
Borrowed from
Latin obesitas
Ultimate origin
Latin edō
Etymology tree
inherited borrowed derived
Latin edō
Latin obedō
Latin obēsus
English obese
French obèse
Latin obēsitās
French obésité
English obesity
From the same root
Latin adedo ← edō
Latin comedō ← edō
Latin edāx ← edō
Latin edibilis ← edō
Latin ēsuriō ← edō
Latin exedō ← edō
Latin inedia ← edō
Latin peredō ← edō

Pronunciation

  • /ɔ.be.zi.te/[1]

Forms

obésité f (usually uncountable, plural obésités)[1]

Etymology

It is borrowed from Latin obēsitās (“excessive stoutness”), a noun formed on obēsus (“fat”).[2][3][4][5] Rey explains the adjective as the past participle of obedō (“to gnaw, eat away”), made of ob and edō (“to eat”); it first meant “gnawed”, hence “lean”, and in imperial times took the opposite sense of “devouring”, hence “fat”.[3] Picoche places it in the family of the Indo-European root Proto-Indo-European *ed- (“to chew”), beside comestible.[6]

The adjective obèse was borrowed from the same Latin family much later, in 1825.[3]

Earliest recorded meaning

It is first recorded in 1550, in H. Fierabras's Méthode chirurgicale, for an excess of body fat.[2][3]

Semantic evolution

The sense of excessive fatness has been the word's main one since the 16th century; the GLLF has a further record from Liébault in 1582.[2][7] In the 19th century it took a rare figurative sense, a heavy and dull state of mind, recorded by Boiste in 1829.[2][3]

In medicine it names a specific disorder, the excess of adipose tissue, distinct from mere plumpness; the GLLF dates the medical use to Brillat-Savarin in 1826.[3][7][8] Brillat-Savarin also coined the rare adjectives obésifuge and obésigène, and obésiologue or obésologue (1978) is a specialist in the condition.[3] The English word obesity (1610s) comes from the French word and directly from Latin.[9]

Timeline

  • 1550 – H. Fierabras uses it in his Méthode chirurgicale.[2]
  • 1582 – Liébault uses it.[7]
  • 1610s – English borrows it as obesity.[9]
  • 1825 – The adjective obèse is borrowed by Brillat-Savarin.[3]
  • 1826 – Brillat-Savarin uses it as a medical term.[7]
  • 1829 – Boiste records the figurative sense of a dull, heavy mind.[2]
  • 1978 – Obésiologue is recorded for a specialist in obesity.[3]

Meanings

Noun

  1. The state of being very fat; obesity.[8][10][1]
  2. (medicine) An excess of adipose tissue in the body, with a weight well above normal.[8][5]
  3. (figurative, rare) Heaviness and dullness of mind.[2][3]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c d e f g h i j Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  4. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  5. ^ a b Académie française (1992–2024), Dictionnaire de l'Académie française, 9th ed., Paris: Académie française / Fayard / Imprimerie nationale
  6. ^ Picoche, Jacqueline (1991), Dictionnaire étymologique du français, Paris: Le Robert (Les Usuels du Robert)
  7. ^ a b c d Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  8. ^ a b c Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Obésité.” Etymologically, 14 Nov. 2026, etymologically.com/fr/ob%C3%A9sit%C3%A9. Accessed 15 Nov. 2026.

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