assertive vs mousy

assertive

adj
  • Boldly self-assured; confident without being aggressive. 

mousy

adj
  • Abounding in or infested with mice. 

  • Of a greyish-brown colour. 

  • mousy 

  • Timid. 

  • Quiet; stealthy. 

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