guttate vs marked

guttate

adj
  • Spotted. 

  • Shaped like, or resembling drops. 

verb
  • To exude drops of xylem sap on the edges of leaves. 

marked

adj
  • Having a visible or identifying mark. 

  • Singled out; suspicious; treated with hostility; the object of vengeance. 

  • Having a secret mark on the back for cheating. 

  • Clearly evident; noticeable; conspicuous. 

  • In police livery, as opposed to unmarked. 

  • Distinguished by a positive feature. 

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