leave behind vs outstrip

leave behind

verb
  • To outdo; to progress faster than (someone or something else). 

  • To pass. 

  • Used other than figuratively or idiomatically: see leave, behind. 

  • To abandon. 

  • To leave (a trace of something). 

  • To not live longer than; to be survived by. 

  • To forget about. 

outstrip

verb
  • To move more quickly than (someone or something) so as to outrun or leave it behind. 

  • To exceed or surpass (someone or something). 

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