Etymologically

Etymology and origin of the English word sleek

Confidence
Established
Formation
Inherited
First attested
c. 1440 Promptorium Parvulorum
Inherited from
Middle English sleken
Ultimate origin
Old English slician

Pronunciation

Etymology

It is a later variant of slick, used for both the verb and the adjective.[2][3][4][5][6][7][8] The verb is inherited from Middle English sleken, a variant of sliken (“to smooth, polish”),[6][9][3][2] which goes back to an Old English verb found only in nigslicod (“newly made sleek”).[3][2][10] The adjective is a variant of slike (“sleek, smooth”),[2][3][6][11] which probably represents an unrecorded Old English *slice, related to that verb.[2][10][12] The OED notes that an Old English adjective with a long vowel, printed in some dictionaries, is a misreading.[2] Skeat compares Old Norse slíkr (“sleek, smooth”),[13] and Ayto and Hoad compare Icelandic slíkja and Norwegian slikja, to be or make smooth, although the OED finds the connection with these unclear.[12][10][2] Etymonline relates the group to German schleichen (“to creep, sneak”) and Dutch slijk (“mud, mire”), and to Proto-Indo-European *sleig- (“to smooth, glide, be muddy, spread”).[3]

Earliest recorded meaning

To make smooth and glossy by rubbing or polishing: the verb sleken is first recorded about 1440 in the Promptorium Parvulorum, glossing a Latin word.[2][6][3] The adjective "perfectly smooth or polished" follows in Puttenham's Arte of English Poesie (1589),[2][6] although Merriam-Webster dates it to 1578.[9][14]

Semantic evolution

The adjective was first used of smooth surfaces, and after 1600 also of the close, glossy coat of a well-kept animal: the OED's first example is Shakespeare's Bottom with his ass's head in A Midsummer Night's Dream.[2][3] From 1638, in Milton's Lycidas, it was applied to people with smooth skin and a well-fed look,[2][3] and Johnson (1755) quoted Shakespeare's "sleek-headed men, and such as sleep a-nights".[15] The figurative sense, oily, fawning or plausible in manner, appears from about 1600 (1601 in the OED; the 1590s in Etymonline).[2][3] The verb had the parallel figurative senses of smoothing away a troubled look (Shakespeare's Macbeth) and of glossing over something (1871).[2] Later senses describe things with trim, graceful lines, such as a car, and a stylish or prosperous look.[14][9][16] Scottish dialect had sleek-gabbit, smooth-spoken or flattering, and sleek-stone, a polishing stone.[17]

Timeline

  • c. 1440 – verb, to make smooth by rubbing or polishing.[2][6][3]
  • 1508 – verb, to make the skin or hair smooth and glossy.[2]
  • 1589 – adjective, perfectly smooth or polished.[2][6] Merriam-Webster dates it to 1578.[9]
  • 1600 – of animals, having a smooth glossy coat.[2][3]
  • 1601 – oily, fawning, plausible.[2]
  • 1638 – of people, smooth-skinned and plump.[2][3]
  • 1871 – verb, to gloss over.[2]

Meanings

Adjective

  1. Smooth and glossy, as if polished: sleek black hair.[16][14][18][9]
  2. Of an animal, having a smooth, shiny coat as a sign of good health or care.[18][2][14]
  3. Well-groomed and stylish, or having a prosperous look.[16][14][18]
  4. Having trim, graceful, streamlined lines: a sleek new sports car.[14][1]
  5. Smooth or polished in speech or manner, often in an unctuous way.[16][14][18][2]

Verb

  1. To make smooth and glossy: She sleeked her hair back with gel.[16][14][18][2]
  2. To gloss over or cover up something unpleasant.[16][9][18][2]

Word family

  • sleekly
  • sleekness
  • sleeker

Usage notes

The Century Dictionary (1895), quoted by Etymonline, regarded slick as the older form, still common in speech, where sleek was often pronounced slick.[3]

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 s t u v w x Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f g h i j k l m Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  5. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  6. ^ a b c d e f g Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  7. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  8. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  9. ^ a b c d e f Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  10. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  11. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  12. ^ a b Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
  13. ^ Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
  14. ^ a b c d e f g h Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  15. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  16. ^ a b c d e f The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
  17. ^ Wright, Joseph, ed. (1898–1905), The English Dialect Dictionary, 6 vols., Oxford: Henry Frowde; via EDD Online 4.0, University of Innsbruck (CC BY 4.0)
  18. ^ a b c d e f Collins English Dictionary (2023), Glasgow: HarperCollins
Cite this entry

“Sleek.” Etymologically, 31 Oct. 2026, etymologically.com/en/sleek. Accessed 1 Nov. 2026.

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