so much vs to wit

so much

adv
  • To a certain degree or extent 

noun
  • A particular amount, often a large or excessive amount. 

  • A demonstrated amount. 

adj
  • To such a quantity, degree etc. 

to wit

adv
  • that is to say; namely; specifically. 

How often have the words so much and to wit occurred in a corpus of books? (source: Google Ngram Viewer )