go for vs onfall

go for

verb
  • To attack. 

  • To try for, to attempt to reach. 

  • To favor, accept; to have a preference for. 

  • To develop a strong interest in, especially in a sudden manner; to be infatuated with. 

  • To apply equally to. 

  • To undertake (an action); to choose an option. 

  • To suffice to be used for; to serve as. 

  • Used other than figuratively or idiomatically: see go, for. 

onfall

verb
  • To assault, attack. 

  • To fall on or upon. 

noun
  • The fall of the evening. 

  • A fall of rain or snow. 

  • A falling on or upon; an attack, onset, or assault. 

How often have the words go for and onfall occurred in a corpus of books? (source: Google Ngram Viewer )