particularize vs expatiate

particularize and expatiate both are verbs.

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

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

particularize: be specific about
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 particularize include dilate, elaborate, enlarge, expand, exposit, expound, flesh out, lucubrate.

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