Burlak 纤夫
A burlak (Russian:бурла́к;IPA: [bʊrˈlak]) was a person who hauled barges and other vessels upstream from the 17th to 20th centuries in the Russian Empire.
The word burlak originated from Tatar word bujdak, 'homeless'. According to another version the word originated from old middle-German bûrlach (working team with fixed rules, artel).