Etymologically

Etymology and origin of the English word immensity

Confidence
Established
Formation
Borrowing
First attested
c. 1440 Middle English Palladius More words from the 15th century
Borrowed from
Old French immensité via Middle English
Ultimate origin
Latin mētior
Etymology tree
inherited borrowed derived
Latin immēnsus
French immense
Latin immēnsitās
English immensity

Pronunciation

  • /ɪˈmɛn.sɪ.ti/[1]

Etymology

It is inherited from Middle English immensite, also inmensite,[2][3] borrowed from Old French immensité or directly borrowed from Latin immēnsitās (“immeasurableness”).[4][5][6][3][7] The Middle English Dictionary gives only the Latin source,[2] and Klein and Johnson only the French.[8][9] The French word is recorded from the 14th century.[4][5] The Latin noun is from immēnsus (“immeasurable, boundless”),[4][5][3] the source of immense, which is formed from in- (“not”) and mēnsus (“measured”), past participle of mētior (“to measure”),[5] and Watkins, as cited by Etymonline, traces this to Proto-Indo-European *me- (“to measure”).[5]

Earliest recorded meaning

The quality of being immeasurable; infinity: about 1440, in the Middle English Palladius.[2] The OED's first record is the Mirour Saluacioun of about 1450,[4] and Etymonline likewise gives the mid 15th century.[5]

Semantic evolution

The word first meant boundlessness, and Donne used it before 1631 for infinite being or infinite space.[4] Johnson (1755) still defined it as "unbounded greatness; infinity", quoting Locke on the idea of space.[9] From 1652 it also meant simple vastness or hugeness.[4] A huge amount is recorded in Fanny Burney's journal of 1778,[4] a sense Collins labels informal.[10] Later uses count as things rather than qualities: an immense extent from 1797, and immense beings or things in the plural from 1839.[4] The adjective immense was itself a vogue word in the 18th century.[5] The synonym immenseness dates from about 1600.[5]

Timeline

  • c. 1440 – the quality of being immeasurable; infinity.[2] The OED's first record is from about 1450.[4]
  • before 1631 – infinite being or existence; infinite space.[4]
  • 1652 – vast size, hugeness.[4]
  • 1778 – an immense quantity.[4]
  • 1797 – an immense extent of something.[4]
  • 1839 – plural, immense or infinite beings or things.[4]

Meanings

Noun

  1. The state of being immense; vast or boundless size or degree: The immensity of the task kept her awake.[10][3][4]
  2. An enormous expanse or extent: the immensity of the desert.[10][4]
  3. Something immense; infinite being, existence or space.[3][4]
  4. (informal) A huge amount.[10][4]

Word family

  • immenseness

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  3. ^ a b c d e Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b c d e f g h i j k l m n o p q r Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  5. ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  6. ^ Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  7. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  8. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  9. ^ a b Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  10. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

Cite this entry

“Immensity.” Etymologically, 7 Nov. 2026, etymologically.com/en/immensity. Accessed 7 Nov. 2026.

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