impediment vs nipping in the bud

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. 

nipping in the bud

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