Definition of sodder:
(n) :
An agricultural implement for scooping or stripping a layer of topsoil and picking it up intact to lay it down as a cover growth or lawn elsewhere.
(n) :
(obsolete or dialect) Solder.
(v) :
(obsolete or dialect) To solder.
(n) :
(derogatory, vulgar) sodomite, sod, bugger
(n) :
A surname from Italian [in turn from Sardinian]