• (n.) A soiling; defilement. • (n.) Act of assoiling, or state of being assoiled; absolution; acquittal.
As·soil'ment noun Act of assoiling, or state of being assoiled; absolution; acquittal. 
assoilment 1. A pronouncement by a judge of not being guilty of criminal charges. 2. The act of assoiling, or state of being assoiled; absolution; acquittal.