ashy vs clayey

ashy

adj
  • Comprising, containing, or covered with ash. 

  • Having dry or dead skin (therefore discolored). 

  • Resembling ashes (especially in colour); (of a person’s complexion) unusually pale as a result of strong emotion, illness, etc. 

clayey

adj
  • Covered or dirtied with clay. 

  • Resembling clay; claylike, clayish. 

  • Of the human body, as contrasted with the soul; bodily, human, mortal. 

  • Composed of clay or containing (much) clay; clayish. 

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