The definition of arrogate is to seize something without justification.(verb)
An example of arrogate is to take over someones land without any right or reason.
See arrogate in Webster's New World College Dictionary
See arrogate in American Heritage Dictionary 4
transitive verb ar·ro·gat·ed, ar·ro·gat·ing, ar·ro·gates
Origin: Latin arrogāre, arrogāt-
Origin: : ad-, ad-
Origin: + rogāre, to ask; see reg- in Indo-European roots.
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