arrogator
/ˈɛrəˌɡeɪtər/
noun
- A person who claims or takes something without right, often in a bold or presumptuous way.
- In the story, the villain was an arrogator who seized the throne illegally.
- History remembers him as an arrogator who took credit for others' work.
- The arrogant politician was seen as an arrogator of power by the public.