King James Bible

DREGS, noun plural [Gr.]

1. The sediment of liquors; lees; grounds; feculence; any foreign matter of liquors that subsides to the bottom of a vessel.

2. Waste or worthless matter; dross; sweepings; refuse. Hence, the most vile and despicable part of men; as the dregs of society.

Dreg, in the singular, is found in Spenser, but is not now used.