[1] : The Collaborative International Dictionary of English v.0.48

xyst \xyst\, xystus \xys"tus\, n. l. xystus, gr. ?, from ? to
   scrape, polish; -- so called from its smooth and polished
   floor. anc. arch.
   a long and open portico, for athletic exercises, as
   wrestling, running, etc., for use in winter or in stormy
   weather.
   1913 webster

Xyst >> X Words
Xyst, definition of term: Xyst
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