In #Polish the word for Germany is Niemcy which is etymologically opposite to #Slavic. ‘[Slavic] … originally denoted "people who speak (the same language)", i.e. people who understand each other, in contrast to the Slavic word denoting "foreign people", namely němci, meaning "mumbling, murmuring people" (from Slavic *němъ "mumbling, mute").’ https://en.wikipedia.org/wiki/Slavs_(ethnonym)#german#etymology#linguistics#language