dreg (noun)

1. During the California Gold Rush in the mid-1800s, the dregs of society flocked to the Western frontier in search of fortune.

2. After the ceremonial wine was consumed, only the dregs remained at the bottom of the chalice.

3. The modernist architecture movement rejects any design elements that may be considered dregs of the past.

4. The fashion industry is always quick to discard last season's dregs and embrace the latest trends.