Solder
/ˈsɒl.dər/noun
A low-melting metal alloy used to join two pieces of metal together.
Did you know?Solder ultimately comes from Latin *solidare*, meaning “to make solid,” so the word’s history is literally about turning loose parts into one body.
Etymological Timeline
Proto-Indo-European
PIE
*sol-
“to be whole, firm, or solid”
Latin
Latin
solidus
“firm, dense, whole”
Late Latin
Latin
solidare
“to make solid; to strengthen”
Old French
Old French
souder
“to solder; to join with a metal alloy”
Middle English
English
solder
“to join metal pieces with a fusible metal”
Modern English
English
solder
“to join or fasten with solder”