Silesia Look up Silesia at
former eastern German province, now southwestern Poland, from Latinized form of German Schliesen (Polish Śląsk), from the name of a river and a mountain there, from Silingi or Silingae, name of a Vandalic (Germanic) people who supposedly had a religious center at the mountain. Related: Silesian. In reference to cloth imported from there from 1670s, especially "a thin cotton cloth, commonly twilled, used for linings for women's dresses and men's garments."