set forth vs expatiate

set forth and expatiate both are verbs.

Word	Noun	Adjective	Verb	Adverb
set forth	No	No	Yes	No
expatiate	No	No	Yes	No

As verbs, expatiate is a hypernym of set forth; that is, expatiate is a word with a broader meaning than set forth:

set forth: state
expatiate: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

Other hypernyms of set forth include dilate, elaborate, enlarge, expand, exposit, expound, flesh out, lucubrate.

set forth (verb)	expatiate (verb)
state	add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
depart for someplace