Definition of re-expound in English:
re-expound
(also reëxpound)
verb ˌriːɛkˈspaʊndˌriːɪkˈspaʊnd
with object To expound (a principle, idea, etc.) again or further.
Origin
Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. From re- + expound.