bemoan vs squall

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. 

squall

verb
  • To cry or wail loudly. 

noun
  • A loud cry or wail. 

  • A sudden storm, as found in a squall line. 

  • A squall line, multicell line, or part of a squall line. 

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