epexegesis

from The Collaborative International Dictionary of English v.0.48

Epexegesis \Ep*ex`e*ge"sis\, n. [NL., fr. Gr. ? detailed
   narrative, fr. ? to recount in detail; 'epi` + ? to lead,
   point out. See {Exegesis}.]
   A full or additional explanation; exegesis.
   [1913 Webster]