dross, impurity

SCUM
WordClue
JUNKtrash, waste
SLAGdross, scoria
DREGSdross, lees
DROSSslag, scoria
TRASHwaste, garbage
LITTERwaste, rubbish
RABBLEdregs, dross
REFUSEwaste, rubbish
PILLAGEdevastation, waste
RUBBISHwaste, discards
DISCARDSwaste, trash
SETTLINGdregs, scum
RECREMENTslag, dross
CABdroshky, hackney
DREGSdross, lees