Vitiation

[Sarah]

The act of vitiating, or the state of being vitiated;depravation; corruption; invalidation; as, the vitiation of theblood; the vitiation of a contract.The vitiation that breeds evil acts. G. Eliot.

[LindaArrit]

nullification by the destruction of the legal force; rendering null

[Mark Zuckerberg]

a reduction in the value, or an impairment in the quality of something

[Julian]

Vitiation refers to the action of spoiling, impairing, corrupting or making something ineffective, typically in the context of legal contracts or agreements. A contract, for instance, can be vitiated if there was a mistake, misrepresentation or fraud involved in its formation, rendering it invalid or unenforceable. In broader terms, vitiation can also refer to the process of corruption or degradation.