Etymologically

pure

Etymology and origin of the English word pure

Confidence
Established
Formation
Borrowing
First attested
c. 1250
Borrowed from
Old French pur via Middle English
Ultimate origin
Latin (purus)

Pronunciation

  • IPA: UK /pjʊə/, US /pjʊr/[1]

Etymology

It is inherited from Middle English pur, pure,[2][3] borrowed from Old French pur (“pure, simple, absolute, unalloyed; sheer, mere”),[4][2] and directly from Latin pūrus (“clean, clear; unmixed; unadorned; chaste, undefiled”),[4][2] conjectured to be from Proto-Indo-European *peue- (“to purify, cleanse”),[4][5] the source also of Latin putus “clear, pure”, Sanskrit punāti “he cleanses”, Middle Irish úr “fresh, new” and Old High German fowen “to sift”.[4][2][3] It replaced Old English hlūttor.[4] It is related to purge, purify and Puritan.[6][7]

Earliest recorded meaning

Of gold, “refined, unalloyed”: about 1250, and earlier as a surname (1178) according to Barnhart,[2] the mid-13th century in Etymonline, with the surname from the late 12th century;[4] Old English had purlamb, a lamb without blemish.[4]

Semantic evolution

“Unmixed, homogeneous” and “total, absolute, mere”, as well as “sexually pure, chaste”, are from about 1300.[4] Hoad dates “guiltless, innocent” to the 14th century and “chaste” to the 15th,[6] and “free from moral corruption” is recorded from the mid-14th century.[4] Of bloodlines it is from the late 15th century,[4] and purebred is American, from 1868.[2] In music, “mathematically perfect”, it is by 1872.[4] The verb pure, “to make pure”, from about 1340, survives only in tanning.[8][9]

Timeline

  • 1178 – as a surname.[2]
  • c. 1250 – unalloyed.[2][4]
  • c. 1300 – unmixed; chaste; mere.[4]
  • mid-14th century – free from moral corruption.[4]
  • late 15th century – of bloodlines.[4]
  • 1868 – purebred.[2]

Modern meaning

Adjective

  1. Not mixed with anything else: pure gold.
  2. Free from dirt, pollution or harmful substances: pure water.
  3. Free of foreign elements.
  4. Complete; utter; nothing but: pure luck.
  5. Without moral fault; chaste or innocent.
  6. Of a science, theoretical rather than applied: pure mathematics.
  7. Of a sound, clear and free of discordant qualities.

Word family

  • purely
  • pureness
  • pureblood
  • pure democracy
  • pure imaginary number
  • pure land
  • purification
  • purify
  • purity
  • puritan
  • puritanism
  • purist
  • purism
  • purge
  • impure

Usage notes

The American Heritage groups pure with absolute, sheer, simple and unadulterated as “free of extraneous elements”.[10]

References

  1. ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
  2. ^ a b c d e f g h i Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e f g h i j k l m n o Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ The American Heritage Dictionary of the English Language (2000), 4th ed., Boston: Houghton Mifflin
  6. ^ a b Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  7. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  8. ^ Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  9. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  10. ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Pure.” Etymologically, 15 Oct. 2026, etymologically.com/en/pure. Accessed 15 Oct. 2026.

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