Xystos

a gymnasium at Elis where runners and pentathletes trained one month prior to the start of the ancient Olympic games.
Found on http://www.hestories.info/greco-roman-world-glossary.html

xystos

xystos A gymnasium at Elis where runners and pentathletes trained one month prior to the start of the ancient Olympic games. Elis was a region and city of ancient Greece in the western Peloponnesus. The plain of Olympia, in the southern part of the area, was the site of the original Olympic Games.
Found on http://www.wordinfo.info/words/index/info/view_unit/3836/
No exact match found