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"Polish person," 1570s, from Polish Polak "(male) Polish person," related to Poljane "Poles," Polsko "Poland," polski "Polish" (see Pole). In North American usage, "Polish immigrant, person of Polish descent" (1879) and in that context considered offensive in English. As an adjective from c.1600.
A Pole or a person of Polish extraction •It is curious that this word is somewhat pejorative in English even though it is the Polish word for ''Pole'' (1879+)