Etymologically
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cannot

Etymology and origin of the English word cannot

History Permalink
Confidence
Established
Formation
Compound
First attested
c. 1400
Ultimate origin
English (can)

Pronunciation

  • IPA: UK /ˈkæn.ɒt/, /ˈkæn.ət/, US /ˈkæn.ɑːt/, /kəˈnɑːt/[1]

Etymology

It is a way of writing can not as one word, from Middle English.[2][3][4] Old English expressed the idea with ne cunnan.[2]

Earliest recorded meaning

About 1400,[2] or the 15th century in Merriam-Webster.[5]

Semantic evolution

The OED treats cannot as the ordinary modern way of writing can not.[4] In speech it is usually contracted to can't.[1] The typical representation of the Scottish pronunciation is canna.[2] Cannot but, “cannot help”, is an established idiom.[6]

Timeline

  • c. 1400 – cannot.[2]

Modern meaning

Verb

  1. The negative form of can: to be unable to; not to be allowed to.
  • can
  • can't
  • not

Usage notes

The American Heritage Dictionary notes that cannot but has been criticized as a double negative, perhaps through confusion with can but; in cannot but the but means “except”, as in no one but.[6]

References

  1. ^ a b 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 Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  3. ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  4. ^ a b Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
  5. ^ Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
Cite this entry

“Cannot.” Etymologically, 15 Oct. 2026, etymologically.com/en/cannot. Accessed 15 Oct. 2026.

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