autocracy vs autarchy

autocracy and autarchy both are nouns.

Word	Noun	Adjective	Verb	Adverb
autocracy	Yes	No	No	No
autarchy	Yes	No	No	No

As nouns, autocracy and autarchy are synonyms defined as:

autocracy and autarchy: a political system governed by a single individual

autocracy (noun)	autarchy (noun)
a political theory favoring unlimited authority by a single individual	a political system governed by a single individual
a political system governed by a single individual	economic independence as a national policy