To nullify is to invalidate something or cancel the effectiveness of something.
(verb)When a contract is declared no longer valid, this is an example of a situation where you nullify a contract.
See nullify in Webster's New World College Dictionary
transitive verb nullified, nullifying
Origin: LL(Ec) nullificare, to despise < L nullus, none (see null) + facere, to make, do
Related Forms:
See nullify in American Heritage Dictionary 4
transitive verb nul·li·fied, nul·li·fy·ing, nul·li·fies
Origin:
Origin: Latin nūllificāre, to despise
Origin: : nūllus, none; see ne in Indo-European roots
Origin: + -ficāre, -fy
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