ar·ro·gate 
/ˈerəˌgeɪt/ verb
ar·ro·gates; ar·ro·gat·ed; ar·ro·gat·ing /ˈerəˌgeɪt/ verb [+ obj] formal : to take or claim (something, such as a right or a privilege) in a way that is not fair or legal
▪ They've arrogated to themselves the power to change the rules arbitrarily. ▪ She arrogated the leadership role to herself.
▪ They've arrogated to themselves the power to change the rules arbitrarily. ▪ She arrogated the leadership role to herself.
