Arrogate
Arrogate ({not transcribed}) , transitive verb
[Latin arrogatus, past participle of adrogare, arrogare, to ask, appropriate to one's self; ad + rogare to ask. See Rogation.]
To assume, or claim as one's own, unduly, proudly, or presumptuously; to make undue claims to, from vanity or baseless pretensions to right or merit; as, the pope arrogated dominion over kings.
He arrogated to himself the right of deciding dogmatically what was orthodox doctrine.