arrogator vs doer

arrogator and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
arrogator	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of arrogator; that is, doer is a word with a broader meaning than arrogator:

arrogator: a person who through conceit makes pretentious claims to rights or advantages that he or she is not entitled to or to qualities that he or she does not possess
doer: a person who acts and gets things done

Other hypernyms of arrogator include actor, worker.

arrogator (noun)	doer (noun)
a person who through conceit makes pretentious claims to rights or advantages that he or she is not entitled to or to qualities that he or she does not possess	a person who acts and gets things done