Etymologically

Etymology and origin of the French word onctueux

Confidence
Established
Formation
Borrowing
First attested
1250–1300 More words from the 13th century
Borrowed from
Latin unctuosus
Ultimate origin
Latin unguō
Etymology tree
inherited borrowed derived
Latin unguō
French oindre
Latin ūnctus
Latin ūnctum
French oing
Italian unto
Romanian unt
Latin ūnctuōsus
English unctuous
French onctueux
Spanish untuoso
From the same root
Latin inunguō ← unguō
Latin ūnctiō ← unguō

Pronunciation

  • /ɔ̃k.tɥø/[1]

Forms

onctueux (feminine onctueuse, masculine plural onctueux, feminine plural onctueuses)[1] Old French unctuose (feminine, second half of the 13th century), Middle French unctueus (1314); onctueux from the 14th century.[2][3][4]

Etymology

It is borrowed from Medieval Latin unctuōsus (recorded in 1250),[2][5][3][6] from unctum, the supine of unguō (“to anoint”).[2][5][1] It belongs with onction and oindre.[5][7]

Earliest recorded meaning

It is first found in the second half of the 13th century in an introduction to astronomy, in savor unctuose “an oily taste”.[2][5]

Semantic evolution

In 1314 the surgeon Henri de Mondeville used unctueus for what is fit for anointing, and of grease, which he called more unctuous and moister than tallow.[2][7] The adjective describes what feels soft and smooth to the touch, by comparison with a fatty substance.[5]

From the 18th century, like onction, it was used figuratively for gentle, moving language (1741) and for a person (1763), and since the 19th century often with a pejorative sense of affected, oily sweetness (1863, Goncourt).[2][5]

Timeline

  • Second half of the 13th century – Savor unctuose in an introduction to astronomy.[2][5]
  • 1314 – Henri de Mondeville writes unctueus of greasy substances fit for anointing.[2][3][7]
  • 1582 – The adverb onctueusement is recorded.[5][8]
  • 1741 – Duclos uses it figuratively of tender words.[2][5]
  • 1763 – Applied to a person, an actress, by Bachaumont.[2]
  • 1863 – The Goncourts use it pejoratively, beside mielleux.[2]

Meanings

Adjective

  1. Greasy or oily in nature, fit for anointing; smooth to the touch like fat or oil: une crème onctueuse.[8][2][7]
  2. Smooth and creamy in texture: une sauce onctueuse.[8][1]
  3. (figurative, often ironic) Full of onction, unctuous, sweetly pious or oily in manner: des manières onctueuses.[8][2][1]

Word family

  • onctueusement

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m 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 Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  4. ^ Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  5. ^ a b c d e f g h i Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  6. ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 14, 36b
  7. ^ a b c d Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  8. ^ a b c d Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert

Related etymologies

Cite this entry

“Onctueux.” Etymologically, 15 Nov. 2026, etymologically.com/fr/onctueux. Accessed 15 Nov. 2026.

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