Etymologically

Etymology and origin of the French word lasser

Confidence
Established
Formation
Inherited
First attested
c. 1100 Chanson de Roland More words from the 11th century
Inherited from
Latin lasso
Ultimate origin
Proto-Indo-European *lh₁d-to-
Etymology tree
inherited borrowed derived
Latin lassus
French las
Latin lassō
French lasser
From the same root
Latin lassitūdō ← lassus

Pronunciation

Forms

lasser[1]

Etymology

It is inherited from Latin lassō (“to tire, weary”),[2][3][4] from lassus (“tired”), the source of las.[5][6][4] De Vaan reconstructs the adjective as Proto-Indo-European *lh₁d-to- (“tired”), with a d-enlargement of the root *leh₁- (“to let”).[7] Cognate with Occitan lassar, Catalan llassar and Italian lassare.[8]

Earliest recorded meaning

The Grand Robert, the GLLF and Rey date it to the Chanson de Roland (about 1100), used intransitively for “to grow tired”: Lasserat Charles.[5][6][4][8] The TLFi's first record is later, in the Roman d'Eneas (about 1165), as a transitive verb “to tire physically” and as reflexive se lasser “to grow weary”.[2]

Semantic evolution

Old French used the verb and its derivatives of bodily tiredness.[4] From the 13th century (Jean de Meun, about 1265) it came to mean “to tire by boring”, and in 1485 “to wear down, discourage”; this moral sense now prevails, and the physical one is old-fashioned.[4][6][9][2] The construction se lasser de drove out classical se lasser à.[4] The same shift is seen in the adjectives lassé (about 1160) and lassant (1680).[4] The derivative délasser, rare before the 16th century, has gone its own way and means “to relax”.[3][4]

Timeline

  • c. 1100 – Lasserat in the Chanson de Roland.[5][8]
  • c. 1165 – Transitive and reflexive uses in the Roman d'Eneas.[2]
  • c. 1265 – Jean de Meun uses it for moral weariness.[6][4]
  • 1485 – Lasser “to fill with weariness” in the Mystère du Viel Testament.[2]
  • 1680 – The adjective lassant appears.[4]
  • 1869 – The derivative inlassable appears.[4]

Meanings

Verb

  1. (dated) To tire physically, exhaust.[9][2][10]
  2. To weary by boring: ses discours lassent la salle.[9][11]
  3. To wear down, discourage: lasser la patience de ses amis.[9][6]
  4. Se lasser de: to grow tired of: elle ne se lasse pas de ce paysage.[9][1]

Word family

  • inlassable
  • délasser

Usage notes

The proverb tout passe, tout casse, tout lasse says that nothing lasts.[9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f 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 Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
  4. ^ a b c d e f g h i j k Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
  5. ^ a b c Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
  6. ^ a b c d e Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
  7. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  8. ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
  9. ^ a b c d e f Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
  10. ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
  11. ^ Dictionnaire Le Robert en ligne, dictionnaire.lerobert.com (accessed 2024)

Related etymologies

Cite this entry

“Lasser.” Etymologically, 11 Nov. 2026, etymologically.com/fr/lasser. Accessed 11 Nov. 2026.

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