earthen vs smutty

earthen

verb
  • to provide or add soil to 

  • to make earthly or earthlike 

adj
  • Made of earth or mud. 

  • Made of clay (especially said of pottery). 

smutty

verb
  • To make dirty; to soil. 

adj
  • Affected with the smut fungus. 

  • Soiled with smut; blackened, dirty. 

  • Obscene, indecent. 

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