Etymologically
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ferocious

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Pronunciation

  • UK: /fəˈɹəʊʃəs/[1]
  • US: /fəˈɹoʊʃəs/[1]

Etymology

It is from Latin ferōx (“fierce, wild-looking”), from its stem ferōc-, with the English suffix -ious.[2][3][4][5][6] Barnhart suggests it may have been modelled on Middle French férocieux and prompted by the earlier English ferocity.[3] The Latin adjective is formed from ferus (“wild”), from Proto-Indo-European *ghwer- (“wild beast”),[7][8] and a suffix -ōx (“looking, appearing”),[7][4][9] which is related to oculus (“eye”) and to Ancient Greek ὤψ (ṓps, “eye, sight”), from Proto-Indo-European *okw- (“to see”).[7][4][9][10] Ayto therefore gives its literal sense as "wild-eyed".[10] Ferus is also the source of fierce and feral,[10][9] and the second element appears in atrocious.[10][9] A variant ferocient (1650s) seldom occurs.[7]

Earliest recorded meaning

Of animals or people and their nature or actions, fierce and savagely cruel: 1646, in Sir Thomas Browne's Pseudodoxia Epidemica.[2][3]

Semantic evolution

From fierce creatures and their deeds the adjective spread to things that show ferocity, such as a look or a manner (1728, in Pope's Dunciad).[2][5] Johnson (1755) defined it as "savage; fierce" and "ravenous; rapacious", quoting Browne's the lion and ferocious animal.[11] From 1877, in Henry James's The American, it has also been used colloquially as an intensive, meaning extreme or very great, especially of something unpleasant; this use began in the United States.[2] Merriam-Webster also records it of bitter quarrels and of devastating force.[4]

Timeline

  • 1646 – fierce, savage, savagely cruel.[2][3]
  • c. 1650 – the variant ferocient.[7]
  • 1728 – showing ferocity.[2]
  • 1877 – as an intensive, extreme, very great (colloquial, originally American).[2]

Meanings

Adjective

  1. Savagely fierce, cruel or violent: a ferocious wolf.[12][4][2]
  2. Showing or marked by ferocity: a ferocious scowl.[2][5]
  3. Very bitter or intense: a ferocious row over the budget.[4][12]
  4. (informal) Extreme or very great, especially of something unpleasant: a ferocious headache.[2][4]

Word family

  • ferociously
  • ferociousness
  • unferocious

References

  1. ^ a b 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 Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  4. ^ a b c d e f g Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  5. ^ a b c Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  7. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  8. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  9. ^ a b c d Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  10. ^ a b c d Ayto, John (2005), Word Origins: The Secret Histories of English Words from A to Z, 2nd ed., London: A & C Black
  11. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  12. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins