'autocraticalness' originates from English, specifically formed from the adjective 'autocratical' plus the noun-forming suffix '-ness', where 'autocratical' ultimately derives from Greek 'autokratēs' (αὐτοκράτης) meaning 'self-ruling' via Latin and French.

'autocraticalness' developed as an English derivation from the adjective 'autocratical' (older form 'autocratic'), which in turn arrived in English from Medieval Latin 'autocrates' and Greek 'autokratēs'; the modern English noun is a later formation using the productive suffix '-ness'.

Initially the Greek root meant 'self-ruler' (one who rules by oneself); over time the English derivatives came to refer more broadly to 'the state or quality of exercising unchecked or centralized authority', which is the current meaning reflected in 'autocraticalness'.