Solder \Sol"der\, v. t. [imp. & p. p. {Soldered}; p. pr. & vb.
n. {Soldering}.] [Formerlysoder. See {Solder}, n.]
1. To unite (metallic surfaces or edges) by the intervention
of a more fusible metal or metallic alloy applied when
melted; to join by means of metallic cement.
[1913 Webster]
2. To mend; to patch up. "To solder up a broken cause."
--Hooker.
[1913 Webster]