Etymologically

Etymology and origin of the English word laxative

Confidence
Established
Formation
Borrowing
First attested
c. 1385 Chaucer's Knight's Tale More words from the 14th century
Borrowed from
Old French laxatif via Middle English
Ultimate origin
Latin laxus

Pronunciation

  • /ˈlæk.sə.tɪv/[1]

Etymology

It is inherited from Middle English laxatif, also laxative,[2][3] borrowed from Old French laxatif[2][4][5] and Medieval Latin laxātīvus (“loosening”),[2][4][5][6] from laxātus, the past participle of laxō (“to loosen, relax”),[4][5][6] from laxus (“loose, wide”).[4][5][6][7] Barnhart takes the English noun as the French adjective used as a noun,[7] and Merriam-Webster as the Middle English adjective so used.[3] The Anglo-Norman laxatif is recorded from the second quarter of the 13th century, as adjective and noun.[8] The Oxford Dictionary of English calls the Latin word late rather than medieval.[9] The Latin word had meant "assuaging" in Late Latin before it took on the medical sense.[5]

Earliest recorded meaning

A purging medicine: the first records are in Chaucer, in the Knight's Tale about 1385 in the MED[2] and the Nun's Priest's Tale about 1386 in the OED.[10] Barnhart dates both noun and adjective a little earlier, to 1373, and gives the adjective first as "having freely moving bowels".[7] Chaucer uses the word four times.[11]

Semantic evolution

The general idea was loosening or relaxing.[12][4] Middle English applied it to anything that loosened the bowels, but also to a drug that expelled bad humours, a sense often hard to tell from the first, and even to an emetic.[2] Applied to the patient rather than the remedy, it meant having loose bowels,[2][10] and in the 15th and 16th centuries the noun could mean the flux itself: in Lydgate, he had A laxatyf That he shortly lost hys lyf.[2][10] It was then carried over to speech and feeling: a person who could not hold in words or emotions was laxative from 1607,[10] and Milton used it in 1645 for something that gave remission or relief.[10] Johnson (1755) keeps only the power to ease costiveness.[13]

Timeline

  • c. 1385 – noun, a purging medicine.[2][10] Barnhart gives 1373.[7]
  • before 1387 – adjective, of a drink, causing looseness of the bowels.[2][7]
  • c. 1430 – noun, looseness of the bowels (obsolete by 1527).[10][2]
  • 1546 – adjective, of the bowels or the constitution, loose.[10]
  • 1607 – adjective, unable to hold in one's speech or emotions.[10]
  • 1645 – adjective, giving remission or relief, in Milton.[10]

Meanings

Noun

  1. A medicine or food that loosens the bowels and relieves constipation; a mild cathartic.[12][10][3]
  2. (obsolete, c. 1430–1527) Looseness of the bowels; flux.[10][2]

Adjective

  1. Causing the bowels to empty and relieving constipation.[12][10][3]
  2. (rare) Of the bowels, loose; of a disease, marked by looseness of the bowels.[10][14][3]
  3. (obsolete) Running freely, unable to hold back words or emotions.[10][3]

Word family

  • laxatively
  • laxativeness

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  3. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  6. ^ a b c Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  7. ^ a b c d e Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  8. ^ Anglo-Norman Dictionary (AND2), Aberystwyth University, anglo-norman.net (2nd ed., 2005–)
  9. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  10. ^ a b c d e f g h i j k l m n o Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  11. ^ Benson, Larry D., Glossarial Concordance to Middle English (Chaucer, Gower), Johns Hopkins University, github.com/jhu-digital-manuscripts/gcme
  12. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins
  13. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  14. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press

Related etymologies

Cite this entry

“Laxative.” Etymologically, 5 Nov. 2026, etymologically.com/en/laxative. Accessed 5 Nov. 2026.

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