Sentence:  Past the split tree three-quarters of the way in, where a man has tucked a small bottle of Rot under the bark for his workmate to collect as he passes. Such narcotics and <WSD>poteens</WSD> are illegal in the encampment, and cannot be risked passing within the huts. 
Meaning of the word marked with <WSD> tags:  Illegally produced Irish whiskey; moonshine. (from early 19th c.)