expatiated
ex-pa-ti-at-ed
verb
Spoke or wrote extensively and in detail about a particular subject.
"She expatiated on the merits of the new proposal."
Thesaurus
Synonyms: dilate, enlarge, exposit, elaborate, expatiate, lucubrate, expand, expound, flesh out
Antonyms: abbreviate, abridge, contract, cut, foreshorten, reduce, shorten