cast down vs downcast

cast down

verb
  • To make (a person) discouraged or dejected. 

  • To overthrow, to defeat or bring to ruin. 

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

downcast

verb
  • To taunt; to reproach; to upbraid. 

  • To cast from supertype to subtype. 

adj
  • Feeling despondent. 

  • Looking downwards. 

noun
  • A ventilating shaft down which the air passes in circulating through a mine. 

  • A cast from supertype to subtype. 

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