epidemic hysertia vs frenzy

epidemic hysertia and frenzy both are nouns.

Word	Noun	Adjective	Verb	Adverb
epidemic hysertia	Yes	No	No	No
frenzy	Yes	No	No	No

As nouns, frenzy is a hypernym of epidemic hysertia; that is, frenzy is a word with a broader meaning than epidemic hysertia:

epidemic hysertia: a condition in which a large group of people exhibit the same state of violent mental agitation
frenzy: state of violent mental agitation

Other hypernyms of epidemic hysertia include craze, delirium, fury, hysteria.

epidemic hysertia (noun)	frenzy (noun)
a condition in which a large group of people exhibit the same state of violent mental agitation	state of violent mental agitation