We don't have synonyms for sawder yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are sander, sawyer and sawer.
(n) :
Archaic form of solder. [Any of various easily-melted alloys, commonly of tin and lead, that are used to mend, coat, or join metal objects, usually small.]
(v) :
Archaic form of solder. [To join items together, or to coat them with solder.]
(n) :
Archaic form of solder. [Any of various easily-melted alloys, commonly of tin and lead, that are used to mend, coat, or join metal objects, usually small.]
(v) :
Archaic form of solder. [To join items together, or to coat them with solder.]