 "Ślęża" is listed as one of the numerous Pre-Indo-European topographic names in the region (see old European hydronymy).According to some Polonists, the name "Ślęża" or "Ślęż" is directly related to the Old Polish words "ślęg" or "śląg" , which means dampness, moisture, or humidity.They disagree with the hypothesis of an origin for the name "Śląsk" from the name of the Silings tribe, an etymology preferred by some German authors.