autocrat
AW-tuh-kratnounMeaning a ruler who holds total power alone
Memory hook AUTO-CRAT: rules all by him-SELF. King Victor signs every order himself and waves away his advisers: “I decide!” A ruler who holds all the power alone is an autocrat.
The old czar was an autocrat who answered to no parliament.
In context The club’s founder ran it like an autocrat, making every decision himself and never once asking the members to vote.
Similar dictator, absolute ruler, tyrant, despot
From Greek autokrates, “ruling by oneself”: autos (self) + kratos (power).