gluten

Etymology

It is borrowed from Latin glūten (“glue”),^[2][3][4][5] perhaps through French gluten (“sticky substance”), recorded from the 16th century.^[2][6][7][8] The Latin noun is related to glūs (“glue”), the source of glue,^[8][6][7] and de Vaan derives it from Proto-Italic *gloiten- (“glue”) and Proto-Indo-European *gleh₁i-, with cognates such as Ancient Greek γλοιός (gloiós, “glutinous substance, gum”) and Old Irish glenaid (“sticks”).^[9]

Earliest recorded meaning

The albuminous element of animal tissues, now called fibrin: 1597, in P. Lowe's work on surgery.^[2][8]

Semantic evolution

The first sense was anatomical: from the 16th to the early 19th century gluten was the name of the part of animal tissue now called fibrin.^[2][6][10] The general sense "any sticky substance, a gum or glue" is recorded from 1639,^[2][7] and Etymonline dates the word itself from the 1630s.^[6] The modern sense, the nitrogenous part of wheat or other flour that remains as a sticky mass when the starch is washed out, is from 1803;^[2][6][8] it gives dough its elasticity.^[7][4] From it chemists named glutamic acid (1871) and glutamate.^[6] A geological use, for a tough mass of clay or bitumen, appeared in 1811 and is probably obsolete.^[2] In current use the word is linked with coeliac disease, which needs a gluten-free diet.^[11]

Timeline

• 1597 – the albuminous element of animal tissues, fibrin (obsolete by 1834).^[2]
• 1639 – any sticky substance, a gum or glue.^[2][7]
• 1803 – the protein part of wheat flour; a viscid animal secretion.^[2][8]
• 1811 – in geology, a tenacious mass of clay or bitumen.^[2]

Meanings

Noun

1. A mixture of proteins, chiefly gliadin and glutenin or glutelin, found in wheat and other cereal grains, which makes dough elastic: She follows a diet without gluten.^[11][7][4]
2. (archaic) A sticky substance; adhesive.^[7][2]
3. (obsolete, 1597–1834) The albuminous element of animal tissues, now called fibrin.^[2][4]

Word family

• glutenous
• glutelin
• glutenin
• gluten bread

Related words

• glutinous
• glue
• agglutinate
• glutamate
• glutton

Usage notes

Dictionary.com lists gluten with glutton as words that are easily confused.^[12] The OED gives a British pronunciation with a full second vowel, /ˈɡl(j)uːtɛn/.^[2]

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m n Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
4. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
5. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
6. ^ a b c d e f Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
7. ^ a b c d e f g Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
8. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
9. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
10. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
11. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins
12. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House