Romanism vs papism

Romanism and papism both are nouns.

Word	Noun	Adjective	Verb	Adverb
Romanism	Yes	No	No	No
papism	Yes	No	No	No

As nouns, Romanism and papism are synonyms defined as:

Romanism and papism: the beliefs and practices of the Catholic Church based in Rome

Other synonyms of Romanism include Roman Catholicism.

Romanism (noun)	papism (noun)
the beliefs and practices of the Catholic Church based in Rome	offensive terms for the practices and rituals of the Roman Catholic Church
	the beliefs and practices of the Catholic Church based in Rome