Sentence:  There were also smaller dealers, known by the names of <WSD>"Pykars</WSD>", resident throughout the country at large who made purchases and prepared the opium in their houses from 10 to 50 maunds, but the commodity thus received from the <WSD>"Pykars</WSD>" was never genuine. 
Meaning of the word marked with <WSD> tags:  A broker dealing directly with a manufacturer of goods.