Etymology and origin of the French word hydrater
- Confidence
- Established
- Formation
- Derivation
- First attested
- 1805 Encyclopédie méthodique More words from the 19th century
- Ultimate origin
- Ancient Greek ὕδωρ
From the same root
Pronunciation
- /i.dʁa.te/[1]
Forms
hydrater[1]
Etymology
It is from French hydrate + -er.[2][3][1] The noun hydrate, first spelled ⟨hidrate⟩ in 1802, is a learned formation on Ancient Greek ὕδωρ (húdōr, “water”) with the suffix -ate.[2][1]
Earliest recorded meaning
It is first found as the past participle hydraté “combined with water” in 1805, in the Encyclopédie méthodique.[2][3]
Semantic evolution
The verb began as a term of chemistry: the reflexive s'hydrater “to pass into the state of a hydrate” is dated 1836 by the Grand Robert and the GLLF (Landais) and 1845–46 by the TLFi;[3][4][2][5] Littré records only this reflexive use.[3][4][2][5] The transitive sense “to combine with water” is dated by the TLFi from a botany manual of 1931.[2]
In the 20th century it was extended to bringing water into living tissue, especially the skin, the sense of everyday cosmetic use.[4][6] The adjective hydratable is recorded from 1846.[6]
Timeline
- 1805 – The participle hydraté appears in the Encyclopédie méthodique.[2]
- 1836 – Landais records the verb, transitive and reflexive.[4][3]
- 1845–46 – Bescherelle's supplement records s'hydrater.[2]
- 1846 – Hydratable is recorded.[6]
- 1931 – Transitive hydrater “combine with water” in Plantefol's botany.[2]
- 20th century – The sense “bring water into the tissues, the skin” appears.[4]
Meanings
Verb
- (chemistry) To combine with water;[2][6][4] s'hydrater, to become a hydrate.[2][6][4]
- To bring or fix water in the body or its tissues, especially to moisturize the skin: cette crème hydrate les peaux sèches.[4][6]
Word family
- hydratable
Related words
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k 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 Rey, Alain, ed. (2005), Le Grand Robert de la langue française, electronic version, Paris: Le Robert
- ^ a b c d e f g h Guilbert, Louis; Lagane, René; Niobey, Georges, eds. (1971–1978; 1989), Grand Larousse de la langue française, Paris: Larousse
- ^ a b Littré, Émile (1873–1877), Dictionnaire de la langue française, 4 vols. and supplement, Paris: Hachette
- ^ a b c d e f Rey-Debove, Josette; Rey, Alain, eds. (2007), Le Petit Robert de la langue française, Paris: Le Robert
Cite this entry
“Hydrater.” Etymologically, 15 Nov. 2026, etymologically.com/fr/hydrater. Accessed 15 Nov. 2026.
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