Sot (noun)

1. A person who is habitually drunk.
2. A person who is habitually drunk and has a bad reputation for it.

Origin:

From old english sott.

Examples:

1. He was nothing but a drunken sot, who could not hold down a job.
2. The sot was kicked out of the bar for his drunken behavior.
3. The sot's alcoholism was causing problems in his personal and professional life.
4. The sot was a regular at the local dive bar.
5. The sot's friends and family had given up on trying to help him.