suru verb (special), transitive verb
to say more than necessary; to be verbose
Archaic transitive suru verb. Used in classical or highly formal contexts to mean speaking excessively or adding unnecessary words.
古い文献では「贅する」を「言葉を余計に重ねる」の意で用いることがある。
In old texts, 贅する is sometimes used to mean 'to pile on unnecessary words'.