Pood (p=put), is a unit of mass equal to 40 funt (фунт, Russian pound). It is approximately 16.38 kilograms (36.11 pounds). It was used in Russia, Belarus and Ukraine. Pood was first mentioned in a number of documents of the 12th century. Unlike funt, which came at least in the 14th century from phunt, пудъ pud (the earlier unattested form... Found on http://en.wikipedia.org/wiki/Pood
Pood noun [ Russian pud' .] A Russian weight, equal to forty Russian pounds or about thirty-six English pounds avoirdupois. Found on http://www.encyclo.co.uk/webster/P/127