bethink vs rechew

bethink

verb
  • To meditate, ponder; to consider. 

  • To determine, resolve. 

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

rechew

verb
  • To go over or ponder again. 

  • To chew again. 

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