lucubrate vs expatiate

lucubrate and expatiate both are verbs.

Word	Noun	Adjective	Verb	Adverb
lucubrate	No	No	Yes	No
expatiate	No	No	Yes	No

As verbs, lucubrate and expatiate are synonyms defined as:

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

Other synonyms of lucubrate include dilate, elaborate, enlarge, expand, exposit, expound, flesh out.

lucubrate (verb)	expatiate (verb)
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing