Etymologically

unique

Etymology and origin of the English word unique

Confidence
Established
Formation
Borrowing
First attested
1602
Borrowed from
French unique
Ultimate origin
Latin (ūnus)

Pronunciation

  • IPA: /juːˈniːk/[1]

Etymology

It is borrowed from French unique,[2][3][4] and in early use directly from Latin ūnicus (“only, single, sole, alone of its kind”),[2][5] from ūnus (“one”),[5][2] from Proto-Indo-European *oi-no- (“one, unique”).[5] It is related to one.[2][6]

Earliest recorded meaning

Single, sole, solitary: 1602 in Barnhart and the OED,[2][7] and 1601 in Merriam-Webster.[3]

Semantic evolution

“Forming the only one of its kind, having no like or equal” is from 1618,[7] the 1610s in Etymonline.[5] In the sense “unrivalled, unparalleled” it was borrowed again from French in the late 18th century and was treated as a foreign word, usually in italics, until the mid-19th century.[2] The weakened sense “remarkable, uncommon” is from the mid-19th century,[5] and critics call it an error.[5][8] The noun, a thing of which only one example exists, is from 1714.[7][3]

Timeline

  • 1602 – single, sole.[2][7]
  • 1618 – having no like or equal.[7]
  • 1714 – noun, a unique specimen.[7][3]
  • late 18th century – reborrowed from French as “unparalleled”.[2]
  • mid-19th century – remarkable, unusual.[5]

Modern meaning

Adjective

  1. Being the only one of its kind.
  2. Without an equal; unparalleled.
  3. Belonging only to a particular person, place or thing: a problem unique to cities.
  4. (informal) Unusual; remarkable.

Word family

  • uniquely
  • uniqueness
  • biunique
  • nonunique
  • ununique

Usage notes

Unique has become the standard example of an adjective that is said not to allow comparison: most grammarians reject very unique or more unique, though nearly unique and almost unique are accepted.[8] In one American Heritage survey, 80 percent of the Usage Panel rejected quite unique in a sentence about fashion.[8]

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 Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ a b c d e f g Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ Cresswell, Julia (2021), Oxford Dictionary of Word Origins, 3rd ed., Oxford: Oxford University Press
  7. ^ a b c d e f Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  8. ^ a b c The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin

Related etymologies

Cite this entry

“Unique.” Etymologically, 15 Oct. 2026, etymologically.com/en/unique. Accessed 15 Oct. 2026.

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