To take or claim for oneself without right; appropriate: Presidents who have arrogated the power of Congress to declare war. See Synonyms at appropriate.
To ascribe on behalf of another in an unwarranted manner.
[Latin arrogāre, arrogāt- : ad-, ad- + rogāre, to ask; see reg- in Indo-European roots.] ar'ro·ga'tion n., ar'ro·ga'tive adj., ar'ro·ga'tor n.