exoneration

noun

reversal of a criminal conviction through demonstration of innocence, a flaw in the conviction, or otherwise

Etymology: From Latin exonerātiō. By surface analysis, exonerate + -ion.

An act of disburdening, discharging, or freeing morally from a charge or imputation.
“Alpaca. (Camelus Pacos,) also Paco. […] This animal, like the camel, is domable, and will carry from seven to nine stone; it will fall on its knees for the convenient reception and exoneration of its burthen.”
“Mr. Spitzer’s proposal also calls for the creation of a state office that would be responsible for studying all cases that resulted in exonerations and looking for flaws in the system that led to those wrongful convictions.”
The state of being disburdened or freed from a charge.