The Collaborative International Dictionary of English v.0.48:

Engild \En*gild"\, v. t.
   To gild; to make splendent.
   [1913 Webster]

         Fair Helena, who most engilds the night. --Shak.
   [1913 Webster]

WordNet (r) 3.0 (2006):

engild
    v 1: decorate with, or as if with, gold leaf or liquid gold
         [syn: gild, begild, engild]