Etymology and origin of the French word mou
- Confidence
- Established
- Formation
- Inherited
- First attested
- c. 1150 Roman de Thèbes More words from the 12th century
- Inherited from
- Latin mollis via Old French
- Ultimate origin
- Latin mollis
From the same root
Pronunciation
- /mu/[1]
Forms
mou (masculine singular before vowel mol, feminine molle, masculine plural mous, feminine plural molles)[1] Old French mol, feminine mole.[2][3] Mou gradually replaced mol, which was the usual form until the 17th century;[3][4] mol survives before a vowel or mute h.[3][4]
Etymology
It is inherited from Old French mol, inherited from Latin mollis (“soft, supple, tender”).[2][5][6][1] The modern form arose beside the older one as fou did beside fol.[3] Rey and the Petit Robert connect the Latin word with an Indo-European base also seen in Ancient Greek μαλακός (malakós, “soft”) and in the English words mild and melt.[3][7]
The noun meaning “lungs (of a slaughtered animal)” is the adjective used as a noun, at first in the form mol in the 14th century.[4][7][3]
Cognate with Romanian moale, Italian molle, Occitan mol, Catalan moll, Spanish muelle and Portuguese mole.[7][8]
Earliest recorded meaning
It is first recorded about 1150 in the Roman de Thèbes, in terre mole “soft earth”, meaning “not hard to the touch”.[2][3] The Grand Robert dates the word to about 1130.[4]
Semantic evolution
From “not hard” came “soft, comfortable” (about 1170) and, of flesh, “tender, fragile” (about 1200).[2][3] It was also used of words spoken gently (1174–1176), a use that disappeared in Middle French; when it is said of speech again from the 17th century, it is pejorative, “languid and affected” (1690).[3][2]
A pejorative strain appears already in Old French: of character, mol meant “weak, cowardly” (about 1200), as later in mou comme une chiffe; of things, “too supple, lacking firmness” (about 1225), and of a fruit “beginning to go bad”.[3][2] Mols plaisirs (1587) are pleasures that make one soft.[2] Said of a work of art it is always disparaging, as in touche molle (1762).[3]
As a noun it first named the calf of the leg (mol de la jambe, 1324), the source of mollet, then the lungs of a slaughtered animal (1393), and in slang the human lung (1902).[3][2] Sailors say donner du mou for slackening a rope (1821).[2] In familiar phrases mou stands for a soft part of the body: bourrer le mou à quelqu'un “to fill someone's head with lies” (whence Céline's c'est du mou, 1936) and rentrer dans le mou, where it refers mainly to the belly (1928).[3][7]
Timeline
- c. 1150 – Terre mole in the Roman de Thèbes.[2][3]
- c. 1170 – Chrétien de Troyes uses it for “soft, comfortable” in Erec et Enide.[2][3]
- 1174–1176 – It is used of words said gently.[2][3]
- c. 1200 – Of character, “weak, cowardly”.[2][3]
- 1324 – Mol de la jambe “calf of the leg”.[2][3]
- 1393 – The Ménagier de Paris uses it for the lungs of a slaughtered animal.[2][3]
- 1587 – Mols plaisirs “pleasures that make one soft”.[2]
- 1690 – Furetière records it of affected, languid language.[2][3]
- 1821 – Nautical donner du mou “to slacken a rope”.[2]
- 1902 – Slang use for the human lung.[3]
- 1928 – Rentrer dans le mou is recorded.[3]
Meanings
Adjective
- Soft: yielding to the touch or to pressure, the opposite of dur.[2][9][1]
- Soft and comfortable, of a cushion or bed.[1][3]
- Lacking firmness, limp, slack.[2][3]
- (figurative) Of a person: lacking energy or character, feeble, spineless.[2][1][3]
- (art) Of a style or touch: lacking vigour.[3][2]
- Of the wind: gentle, weak.[2][10]
- (anatomy) Parties molles: the soft tissues of the body, as opposed to the skeleton.[2][9]
Noun
- Something soft.[9][1]
- The lungs or lights of a slaughtered animal, sold as offal, as in mou de veau.[7][3][1]
- (nautical) The slack of a rope: donner du mou.[2][1]
- (familiar) Bourrer le mou à quelqu'un: to fill someone's head with lies.[7][3]
- (familiar) Rentrer dans le mou à quelqu'un: to beat someone up.[7][3]
Adverb
- (familiar) Gently, without vigour.[11]
Word family
- mollasse
- mollesse
- mollir
- molard
- amollir
- mollet
- ramollir
- mollasson
Related words
References
- ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y 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
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z 27 28 29 Rey, Alain, ed. (1992), Dictionnaire historique de la langue française, Paris: Le Robert
- ^ a b c d Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ Wartburg, Walther von, et al. (1922–2002), Französisches Etymologisches Wörterbuch, 25 vols., Bonn / Leipzig / Basel: Klopp / Teubner / Zbinden, p. 6/3, 49b
- ^ Bloch, Oscar; Wartburg, Walther von (1989), Dictionnaire étymologique de la langue française, 8th ed., Paris: Presses universitaires de France
- ^ a b c d e f g Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
- ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter
- ^ a b c Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ Dictionnaire de français Larousse, larousse.fr/dictionnaires/francais (accessed 2024)
Related etymologies
Cite this entry
“Mou.” Etymologically, 11 Nov. 2026, etymologically.com/fr/mou. Accessed 12 Nov. 2026.
Last edited on . ·