mollify vs tidder

mollify

verb
  • To soften; to make tender 

  • To ease a burden, particularly worry; make less painful; to comfort. 

  • To appease (anger), pacify, gain the good will of. 

tidder

verb
  • To treat with tenderness; fondle 

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