here’s this http://www.fromoldbooks.org/Grose-VulgarTongue/s/sot-weed.html

Since the word is so old, it’s only in old dictionaries. It also doesn’t help that it’s slang.

Also:

This came from the urban dictionary: Good, nice, awesome, tight, mint, dope, straight, ill, sick.

Although this can refer to “sot weed”, which means tobacco, this word is actually a synonym of dank. Dank means good, nice, awesome, hot. If a hot girl walks by, she’s dank. Maserati rolls by, u say “dank car”. So if you find out you dont have to go to school or work tomorrow, you would say “sot”.

A slang term from the 1800’s.

Taken from “The 1811 Dictionary of the Vulgar Tongue.”

http://www.fromoldbooks.org/Grose-VulgarTongue/s/sot-weed.html

Yes, “sot” is defined in the urban dictionary as in the previous answer, but “sot-weed” is tobacco.