enthuse vs speak

enthuse and speak both are verbs.

Word	Noun	Adjective	Verb	Adverb
enthuse	No	No	Yes	No
speak	No	No	Yes	No

As verbs, speak is a hypernym of enthuse; that is, speak is a word with a broader meaning than enthuse:

Other hypernyms of enthuse include mouth, talk, utter, verbalise, verbalize.

enthuse (verb)	speak (verb)
utter with enthusiasm	express in speech
cause to feel enthusiasm	exchange thoughts; talk with
	use language
	give a speech to
	make a characteristic or natural sound