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laiteux

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Etymology and origin of the French word laiteux

Confidence
Established
Formation
Derivation
First attested
1564 Ambroise Paré More words from the 16th century
Ultimate origin
Latin lac
Etymology tree
inherited borrowed derived
French lait
French laiteux
From the same root
French laitier ← lait

Pronunciation

Forms

laiteux (feminine laiteuse, masculine plural laiteux, feminine plural laiteuses)[1]

Etymology

It is formed from French lait + -eux.[2][3][4] The base lait is from Vulgar Latin lactem, an accusative of masculine or feminine declension used in place of the Classical Latin neuter lac (“milk”).[5] Littré instead derived the adjective from lactōsus,[6] and Wiktionary notes that it may correspond to that Latin word.[1]

Earliest recorded meaning

A possible early record is terre leiteuse in a text of the 14th or 15th century cited by Godefroy;[2][4] Bloch and Wartburg and the GLLF date the word to about 1400.[5][7] The first sure record is in Ambroise Paré in 1564, who speaks of urines laiteuses, urine that looks like milk.[2][6]

Semantic evolution

The adjective first described what has the look of milk, at first chiefly in medical writing (about 1560) and in jewellery (1622).[4][2] Furetière applied it in 1690 to plants that contain a milk-like sap.[2][7] From the colour it came to describe whiteness in general and the pallor of skin.[4][7]

In 1832 it was used for what relates to lactation and nursing, as in maladie laiteuse;[2] this medical use, which keeps the literal sense of lait, is now archaic.[4][7] The adverb laiteusement was derived from it in 1881 and is literary.[4]

Timeline

  • 14th–15th century – Terre leiteuse, perhaps the first record, in a text cited by Godefroy.[2][4]
  • 1564 – Ambroise Paré writes of urines laiteuses.[2][6]
  • 1622 – First used in jewellery.[2][4]
  • 1690 – Furetière records it of plants with a milky sap.[2][7]
  • 1832 – Used of what relates to lactation.[2][4]
  • 1881 – The adverb laiteusement is recorded.[4]

Meanings

Adjective

  1. Having the look, and above all the whitish colour, of milk: milky, opaline: une brume laiteuse, un ciel laiteux.[8][2]
  2. Of a plant: containing a milk-like sap.[2][7]
  3. Huître laiteuse: an oyster that has not yet released its eggs or milt.[8]
  4. (dated) Relating to milk or to breastfeeding: maladies laiteuses.[7][2]

Word family

  • laiteusement

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n 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. ^ Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  4. ^ a b c d e f g h i j Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  5. ^ a b Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  6. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  7. ^ a b c d e f g Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  8. ^ a b Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
Cite this entry

“Laiteux.” Etymologically, 14 Nov. 2026, etymologically.com/fr/laiteux. Accessed 15 Nov. 2026.

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