Byzantinism vs Caesaropapism

Byzantinism and Caesaropapism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Byzantinism	Yes	No	No	No
Caesaropapism	Yes	No	No	No

As nouns, Byzantinism and Caesaropapism are synonyms defined as:

Byzantinism and Caesaropapism: the doctrine that the state is supreme over the church in ecclesiastical matters

Other synonyms of Byzantinism include Erastianism.

Byzantinism (noun)	Caesaropapism (noun)
the doctrine that the state is supreme over the church in ecclesiastical matters	the doctrine that the state is supreme over the church in ecclesiastical matters