cosher vs tidder

cosher

verb
  • To treat with fondness; to excessively dote on. 

  • To levy certain exactions or tribute upon; to lodge and eat at the expense of. 

  • To chat in a friendly way. 

tidder

verb
  • To treat with tenderness; fondle 

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