impediment vs sustenance

impediment

noun
  • Baggage, especially that of an army; impedimenta. 

  • A disability, especially one affecting the hearing or speech. 

  • A hindrance; that which impedes or obstructs progress. 

sustenance

noun
  • Something that provides support or nourishment. 

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