bethink vs reminisce

bethink

verb
  • To think of (something or somebody) or that (followed by clause); to remind oneself, to consider, to reflect upon. 

  • To meditate, ponder; to consider. 

  • To determine, resolve. 

reminisce

verb
  • To remember fondly; to reminisce about. 

  • To recall the past in a private moment, often fondly or nostalgically. 

  • To talk or write about memories of the past, especially pleasant memories. 

noun
  • An act of reminiscence. 

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