ceramic vs claycourt

ceramic

noun
  • A hard, brittle, inorganic, nonmetallic material, usually made from a material, such as clay, then firing it at a high tempature. 

  • An object made of this material 

adj
  • Made of material produced by the high-temperature firing of inorganic, nonmetallic rocks and minerals. 

claycourt

noun
  • A court whose surface is made of crushed shale, stone or brick. 

How often have the words ceramic and claycourt occurred in a corpus of books? (source: Google Ngram Viewer )