can·not | \ˈka-(ˌ)nät; kə-ˈnät, ka-ˈ\

Definition of cannot 

: can not

cannot but or cannot help but or less commonly cannot help

: to be unable to do otherwise than we cannot but wonder why I cannot help feeling sorry for them.

First Known Use of cannot

15th century, in the meaning defined above

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The first known use of cannot was in the 15th century

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can·not | \ˈka-ˌnät, kə-ˈnät\

Kids Definition of cannot

: can not We cannot attend the party.

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