absorbent

Etymology

It is borrowed from Latin absorbēns, the present participle of absorbeō (“to swallow up”),^{[2][3][4][5][6]} which is formed from ab- (“away”) and sorbeō (“to suck”),^[7][8] from Proto-Indo-European *srebh- (“to suck, absorb”).^[5] The OED compares French absorbant, recorded from the 18th century,^[2] and Merriam-Webster Unabridged takes the noun as a use of the adjective or a formation from absorb with -ent.^[3]

Earliest recorded meaning

Having the property of absorbing something: 1694, in R. Blome's translation of A. Le Grand's Entire Body of Philosophy, in the OED's revision of 2011.^[2][3] Etymonline gives 1718 for both adjective and noun, and Dictionary.com the range 1710–20.^[5][9]

Semantic evolution

Early uses leaned to chemistry and medicine: the noun, recorded from 1698 in T. Emes's Dialogue between alkali and acid, could mean an alkaline substance,^[2] and Johnson (1755) defined it as a medicine that softens sharp humours or dries excess moisture in the body, quoting Arbuthnot on shells, coral and chalk.^[10] In the 18th century physiologists and botanists applied it to the vessels that take up fluid, the lacteals and lymphatics of animals and the xylem of plants,^[2] a use now rare or obsolete.^[6] Later technical uses are a liquid separating gases or volatile substances,^[3] and a material that takes up sound, from 1858.^[2] The noun has been used figuratively since 1772.^[2] absorbency is recorded from the mid 19th century.^[6]

Timeline

• 1694 – adjective, having the property of absorbing something.^[2][3]
• 1698 – noun, a substance or object that absorbs, in early use also an alkaline substance.^[2][3]
• 1726 – adjective, in physiology and botany, involved in absorption.^[2]
• 1734 – noun, an absorbing vessel, such as a lacteal or lymphatic.^[2]
• 1772 – noun, in figurative use.^[2]
• 1858 – noun, a material or structure that absorbs sound.^[2]

Meanings

Adjective

1. Able to absorb something, especially to soak up liquid: an absorbent floor mat.^[11][3][2]
2. (physiology, botany) Taking part in physiological absorption, as of the lymphatic vessels of animals.^[2]

Noun

1. A substance or material that absorbs: Sawdust works as a cheap absorbent.^[11][3][2]
2. A liquid used to separate gases or volatile substances, as in petroleum refining.^[3]
3. A material or structure that absorbs sound.^[2]
4. (physiology, now rare or obsolete) A vessel or organ through which absorption takes place.^[2][6]

Word family

• absorbency
• superabsorbent
• unabsorbent
• nonabsorbent
• absorbent cotton

Related words

• absorb
• absorption
• absorptive

Usage notes

The spelling absorbant is less common.^[3][11] In North America absorbent cotton is the term for cotton wool.^[6]

References

1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m n o p q r Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h i j Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
4. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
5. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
6. ^ a b c d e Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
7. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
9. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
10. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
11. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins