defilement vs sustenance

defilement

noun
  • The state of being defiled. 

  • The act of defiling. 

  • The protection of the interior walls of a fortification from enfilading fire, as by covering them, or by a high parapet on the exposed side. 

sustenance

noun
  • Something that provides support or nourishment. 

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