The definition of assume is to formulate or verbalize an idea for which there is no evidence.
Claim means to take or assert ownership of something or to state something as true.
To seize by or as by authority; appropriate
A claim for money or other relief or the assertion of a legal right.
To gain possession of by prior right or opportunity, especially to settle on (public land) so as to obtain the right to buy before others.
To put in legal possession of a particular thing; assign ownership to
To set apart; to put aside; to remove; to separate from other things.
To take possession of or make use of exclusively for oneself, often without permission:
To lose, give up, or be deprived of as a forfeit for some crime, fault, etc.
Find another word for arrogate. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for arrogate, like: assume, claim, commandeer, confiscate, demand, preempt, seize, sequester, take, usurp and give.