xyst

/zɪst/
noun
  1. A long, covered walkway or portico, especially in ancient Greek or Roman architecture, used for exercise or as a promenade.
    • The garden featured a xyst lined with columns and benches for quiet reflection.
    • Archaeologists uncovered the remains of a marble xyst near the ancient gymnasium.
    • The students walked along the xyst, sheltered from the sun by the roof.
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