נְחֹשֶׁת nᵉchôsheth (H5178)

copper, hence, something made of that metal, i.e. coin, a fetter; figuratively, base (as compared with gold or silver)

1) copper, bronze 1a) copper (ore), bronze (as copper alloy) 1b) fetters (of copper or bronze) 1c) copper (as value) 2) lust, harlotry 2a) meaning dubious

for נְחוּשָׁה (H5154);