[drɒs], (Noun)

Definitions:
- something regarded as worthless; rubbish
(e.g: there are bargains if you have the patience to sift through the dross)

- foreign matter, dregs, or mineral waste, in particular scum formed on the surface of molten metal
(e.g: alchemists tried to create gold from dross)


Phrases:

Origin:
Old English drōs (in the sense ‘scum on molten metal’); related to Dutch droesem and German Drusen ‘dregs, lees’