patter vs satisfactory

patter

noun
  • One who pats. 

  • A soft repeated sound, as of rain falling, or feet walking on a hard surface. 

  • Glib and rapid speech, such as from an auctioneer or a sports commentator. 

verb
  • To speak glibly and rapidly, as does an auctioneer or a sports commentator. 

  • To spatter; to sprinkle. 

  • To make irregularly repeated sounds of low-to-moderate magnitude and lower-than-average pitch. 

satisfactory

noun
  • Somebody or something that meets requirements without exceeding them. 

  • The rating given to somebody or something that meets requirements without exceeding them. 

adj
  • Causing satisfaction; agreeable or pleasant; satisfying. 

  • Done to satisfaction; adequate or sufficient. 

  • Making atonement for a sin; expiatory. 

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