particularise vs expatiate

particularise and expatiate both are verbs.

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

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

particularise: 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 particularise include dilate, elaborate, enlarge, expand, exposit, expound, flesh out, lucubrate.

particularise (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