laugh down vs outlaugh

laugh down

verb
  • To cause to cease or desist by laughter. 

  • To cause to be given up on account of ridicule. 

outlaugh

verb
  • To ridicule or laugh someone out of a purpose, principle, etc.; laugh down; discourage or put out of countenance by laughing. 

  • To laugh louder than, surpass in laughing. 

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