Admittedly, this may be a new word to some, and many typify its existence among us. Also, admittedly, I've been guilty of the practice, but committed to it is personal dismissal: Arrogation. To arrogate is to take or claim something without justification. It is derived from the Latin, arrogare, to appropriate to one's self. It is, therefore, etymologically rooted in arrogance. One might say that to arrogate is to activate into practice the attitude of arrogance. For example: They arrogate to themselves the ability to divine the true thoughts, intentions, and according actions of another person. As such, it belongs under the logical fallacy of the a priori argument.