Etymologically

Etymology and origin of the French word thon

Confidence
Probable
Formation
Borrowing
First attested
c. 1393 Ménagier de Paris More words from the 14th century
Borrowed from
Occitan ton
Ultimate origin
Ancient Greek θύννος
Etymology tree
inherited borrowed derived
Ancient Greek θύννος (thúnnos)
Latin thunnus
French thon
Romanian ton
From the same root
Italian tonno ← θύννος
Spanish atún ← θύννος

Pronunciation

Forms

thon m (plural thons)[1] Middle French ton; the spelling thon is found in 1538.[2]

Etymology

It is borrowed from Old Occitan ton, from Latin thunnus, thynnus, which is from Ancient Greek θύννος (thúnnos).[3][4][5] The TLFi derives it from the Latin word, perhaps through the Occitan one, which is recorded only from the 15th century.[2][6] Rey thinks the Greek word is probably a Mediterranean one, which the Greeks linked by folk etymology with a verb meaning “to dart, rush”, and rejects a link with a Hebrew word for “sea monster”.[3]

Cognate with Italian tonno.[5][7]

Earliest recorded meaning

It is first found as ton in the Ménagier de Paris (about 1393), describing a fish found in the sea and salt pools of Languedoc.[2][5][8]

Semantic evolution

The derivative tonine “tuna” is older still, found at the end of the 11th century in Rashi's glosses.[2][3] The word names the large sea fish, and its flesh as food from 1690.[2][3] The fishing terms thonaire (1801) and thonier (end of the 19th century) were derived from it.[3] In familiar use it is also a derogatory word for an unattractive woman.[9][1]

Timeline

  • c. 1393 – Ton appears in the Ménagier de Paris.[2]
  • 1538 – Estienne writes thon.[2]
  • 1690 – Furetière records the sense “flesh of the tuna”.[2]
  • 1801 – Thonaire is recorded.[3]

Meanings

Noun

  1. The tuna, a large fish of the mackerel family living in the Atlantic and the Mediterranean: thon rouge, thon blanc.[9][2]
  2. Its flesh as food, fresh or tinned: thon à l'huile.[9]
  3. (familiar, derogatory) An unattractive girl or woman.[9][1]

Word family

  • thonine
  • thonier
  • thonaire

Usage notes

Thon is a homophone of ton.[9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i 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 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 c Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  6. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 13/1, 318b
  7. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
  8. ^ Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ a b c d e Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Thon.” Etymologically, 14 Nov. 2026, etymologically.com/fr/thon. Accessed 15 Nov. 2026.

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