solder
noun
[ ˈsəʊldə ]
• a low-melting alloy, especially one based on lead and tin or (for higher temperatures) on brass or silver, used for joining less fusible metals.
• "remove the fitting using a blowtorch to melt the solder"
solder
verb
• join with solder.
• "the wires to this clip are soldered to the circuit board"
Origin:
Middle English: from Old French soudure, from the verb souder, from Latin solidare ‘fasten together’, from solidus ‘solid’.