bemoan vs nay-say

bemoan

verb
  • To moan or complain about (something). 

  • To be dismayed or worried about (someone), particularly because of their situation or what has happened to them. 

nay-say

verb
  • To speak negatively of something. 

  • To reply no. 

How often have the words bemoan and nay-say occurred in a corpus of books? (source: Google Ngram Viewer )