ˌ ̷ ̷ ̷ ̷ˈgāshən noun
( -s )
Etymology: Latin arrogation-, arrogatio, from arrogatus + -ion-, -io -ion
1. : the act of arrogating or the state of being arrogated
an arrogation by Congress of a role that belongs to the courts — New Republic
2. Roman law : the adoption of a person sui juris and independent, the person adopted losing his independence and together with his children and his property becoming subject to the paternal power of the adopting father