cast down vs throw a pall over

cast down

verb
  • To overthrow, to defeat or bring to ruin. 

  • To make (a person) discouraged or dejected. 

  • Used other than figuratively or idiomatically: see cast, down. 

throw a pall over

How often have the words cast down and throw a pall over occurred in a corpus of books? (source: Google Ngram Viewer )