01 a. Pertaining to the ancient Rhaeti, or Rhaetians, or to Rhaetia, their country; as, the Rhetian Alps, now the country of Tyrol and the Grisons.
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1.
Pertaining to the ancient Rhaeti, or Rhaetians, or to Rhaetia, their country; as, the Rhetian Alps, now the country of Tyrol and the Grisons.