rooter vs enthusiast

rooter and enthusiast both are nouns.

Word	Noun	Adjective	Verb	Adverb
rooter	Yes	No	No	No
enthusiast	Yes	No	No	No

As nouns, enthusiast is a hypernym of rooter; that is, enthusiast is a word with a broader meaning than rooter:

Other hypernyms of rooter include partisan, partizan.

rooter (noun)	enthusiast (noun)
an enthusiastic devotee of sports	an ardent and enthusiastic supporter of some person or activity
	a person having a strong liking for something