adjective / verb
null
NULL/nʌl/
Having no force or effect, or making something so.
Without both signatures, the agreement is null and legally unenforceable.

Etymology
Latin nullus means “not any” or “none.” In the legal sense, that absence concerns force or validity: something null has no legal effect.
In context
he tries to insert the phrase null void of No Force and effect which was the language from The Kentucky Resolution federal law
More examples
- The judge declares the contract null and void.
- The new agreement nulls the earlier payment terms.
- The court nulled the sale because the seller lacked authority.
Forms
null · nulls · nulled · nulling
nullify verb — To make legally invalid or ineffective.
nullification noun — The act of making something ineffective.