 "Keeang-Koo," "Kyang Kew," "Kian-ku," and related names derived from mistaking the Chinese term for the mouth of the Yangtze (, p "Jiāngkǒu") as the name of the river itself.The name Blue River began to be applied in the 18th century, apparently owing to a former name of the Dam Chu or Min and to analogy with the Yellow River, but it was frequently explained in early English references as a 'translation' of "Jiang", "Jiangkou", or "Yangzijiang".Very common in 18th- and 19th-century sources, the name fell out of favor due to growing awareness of its lack of "any" connection to the river's Chinese names and to the irony of its application to such a muddy waterway.