reformer vs eristic

reformer and eristic both are nouns.

Word	Noun	Adjective	Verb	Adverb
reformer	Yes	No	No	No
eristic	Yes	Yes	No	No

As nouns, eristic is a hypernym of reformer; that is, eristic is a word with a broader meaning than reformer:

Other hypernyms of reformer include controversialist, disputant.

reformer (noun)	eristic (noun)
an apparatus that reforms the molecular structure of hydrocarbons to produce richer fuel	the art of logical disputation (especially if specious)
a disputant who advocates reform	a person who disputes; who is good at or enjoys controversy

reformer (adjective)	eristic (adjective)
	given to disputation for its own sake and often employing specious arguments