Copper \Cop"per\, v. t. [imp. & p. p. {Coppered}; p. pr. & vb. n. {Coppering}.] To cover or coat with copper; to sheathe with sheets of copper; as, to copper a ship. [1913 Webster]
Coppering \Cop"per*ing\, n. 1. The act of covering with copper. [1913 Webster] 2. An envelope or covering of copper. [1913 Webster]