Etymologically

Etymology and origin of the English word slimy

Confidence
Established
Formation
Derivation
First attested
1377 William Langland, Piers Plowman
Ultimate origin
Proto-Germanic *slīmaz
Etymology tree
inherited borrowed derived
English slime
English slimy

Pronunciation

  • /ˈslaɪ.mi/[1]

Etymology

It is formed from English slime + -y.[2][3][4][5] Slime is from Old English slīm (“soft mud”),[3][6] from Proto-Germanic *slīmaz.[3][6][7] Similar adjectives were formed in other Germanic languages: slimich, now Dutch slijmig, and slîmic, now German schleimig.[2][3]

Earliest recorded meaning

Covered with or full of slime: 1377, in Langland's Piers Plowman.[2][8] Etymonline dates the word to the late 14th century.[3]

Semantic evolution

The physical senses, "of the nature of slime" and "covered with slime", both appear in the late 14th century, the latter used especially of muddy rivers and shores.[2][3] The figurative sense "morally vile, repulsive" is recorded from 1575, in a translation of Luther,[2][3] and in slang the word has meant deceitful or underhand since at least 1866.[9] Collins records a chiefly British sense, servile or fawning.[10] In American campus slang of the 1980s slimy was also used of a very unattractive person.[9]

Timeline

  • 1377 – covered with slime.[2]
  • 1398 – of the consistency of slime; of rivers and shores, muddy.[2]
  • 1575 – morally vile, repulsive.[2][3]
  • 1778 – of ore, in the form of slime.[2]
  • 1866 – in slang, deceitful.[9]

Meanings

Adjective

  1. Covered with, containing or producing slime; viscous and slippery: slimy rocks at the water's edge.[10][4][2]
  2. Unpleasantly deceitful or dishonest; vile or offensive: a slimy salesman.[10][4][9]
  3. (chiefly British) Excessively servile or ingratiating.[10]

Word family

  • slimily
  • sliminess

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ a b Kroonen, Guus (2013), Etymological Dictionary of Proto-Germanic, Leiden Indo-European Etymological Dictionary Series 11, Leiden / Boston: Brill
  7. ^ Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling
  8. ^ Skeat, Walter W. (1911), A Concise Etymological Dictionary of the English Language, new ed., Oxford: Clarendon Press
  9. ^ a b c d Green, Jonathon (2010), Green's Dictionary of Slang, London: Chambers; digital ed. 2016–, https://greensdictofslang.com
  10. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

  • something · also from Old English
  • spring · also from Old English
  • game · also from Old English
  • end · also from Old English
  • school · also from Old English
  • without · also from Old English
  • put · also from Old English
  • might · also from Old English
Cite this entry

“Slimy.” Etymologically, 2 Nov. 2026, etymologically.com/en/slimy. Accessed 2 Nov. 2026.

Last edited on . ·