dispose of vs weed out

dispose of

verb
  • To get rid of. 

  • To transfer to another's control. 

  • To arrange in an orderly way. 

  • To deal with conclusively with a threat or a difficult situation. 

  • To have available, or at one's disposal. 

weed out

verb
  • to remove unwanted elements from a group 

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