DROSS, n. G.
1. The recrement or despumation of metals the scum or extraneous matter of metals, thrown off in the process of melting.
2. Rust crust of metals an incrustation formed on metals by oxydation.
3. Waste matter refuse any worthless matter separated from the better part impure matter.
The worlds glory is but dross unclean.
The King James Bible has stood its ground for nearly 400 years. However, during that time the English language has changed, and with it the meanings of some words it used. Here are more than 6,500 words whose definitions have changed since 1611.Wikipedia
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