Etymologically

extraneous

Etymology and origin of the English word extraneous

Confidence
Established
Formation
Borrowing
First attested
1638 Read, Treatise of the First Part of Chirurgerie More words from the 17th century
Borrowed from
Latin extraneus
Ultimate origin
Latin extrā
Etymology tree
inherited borrowed derived
Latin exter
Latin extrā
Latin extrāneus
French étrange
Italian strano
English extraneous
From the same root
Latin exterior ← exter
Latin externus ← exter
Latin extrēmus ← exter
Latin extrīnsecus ← exter
Aromanian pristi ← extrā
Latin extraordinārius ← extrā
Latin ūna ← extrā
Latin extrāneō ← extrāneus
French étranger ← étrange

Pronunciation

  • /ɛkˈstɹeɪ.ni.əs/, /ɪkˈstɹeɪ.ni.əs/[1]

Etymology

It is borrowed from Latin extrāneus (“external, strange”),[2][3][4][5][6][7] with the Latin ending replaced by the English suffix -ous,[2][8][9][5][10] from extrā (“outside”).[2][3][4][5][11] Dictionary.com analyses the Latin adjective as extra- with -ānus and -eus.[12] The same Latin adjective reached English through Old French estrange as strange, so that the two English words are doublets.[2][3][5]

Earliest recorded meaning

Of external origin; introduced or added from outside: 1638, in A. Read's treatise on surgery.[2][13][7] Etymonline dates the word to the 1630s.[3]

Semantic evolution

As a noun the Latin word meant "a stranger", and its literal sense was "that is from without".[3] The first English sense kept that physical idea of something foreign to the object that contains it,[2] and it was soon extended to what lies outside the matter in hand, recorded from 1662,[2] and to people who do not belong to a community, country or family, from 1656.[2] Johnson (1755) defined it as not belonging to a thing, foreign, of a different substance, and not intrinsic, quoting Locke.[14] Collins now lists "not essential" and "irrelevant" first.[6]

Timeline

  • 1638 – of external origin; added from outside.[2][13][7]
  • 1656 – of a person, not belonging to a community, country or family.[2]
  • 1662 – external to the thing under consideration, not forming part of it.[2]
  • c. 1750 – brought from abroad, exotic.[2]
  • 1786 – of an action, proceeding from outside.[2]

Meanings

Adjective

  1. Not essential or not relevant to the matter in hand: Delete the extraneous paragraphs from your report.[6][7]
  2. Coming from outside; external in origin: extraneous noise on the recording.[6][7][2]
  3. Not belonging to the thing to which it has been added, or in which it is contained; foreign.[6][2]
  4. Of a person: not belonging to a particular community, country or family.[2]

Word family

  • extraneously
  • extraneousness
  • nonextraneous
  • unextraneous

References

  1. ^ 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 Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  5. ^ a b c d Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  6. ^ a b c d e Collins English Dictionary (2023), Glasgow: HarperCollins
  7. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  8. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  9. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  10. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  11. ^ Weekley, Ernest (1921), An Etymological Dictionary of Modern English, London: John Murray
  12. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  13. ^ a b Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
  14. ^ Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.

Related etymologies

Cite this entry

“Extraneous.” Etymologically, 5 Nov. 2026, etymologically.com/en/extraneous. Accessed 6 Nov. 2026.

Last edited on . ·