History and etymology
Autocracy comes from the Ancient Greek autós (self) and krátos (power, strength) from Kratos, the Greek personification of authority. In the Medieval Greek language, the term Autocrates was used for anyone holding the title emperor, regardless of the actual power of the monarch. Some historical Slavic monarchs, such as Russian tsars and emperors, included the title Autocrat as part of their official styles, distinguishing them from the constitutional monarchs elsewhere in Europe. This not to be confused with the use of 'auto-', as in 'automatic' or 'automobile', to refer to the lack of need for human rule or power at all instead of power by one.