come down vs overfall

come down

verb
  • To descend, fall down, collapse. 

  • To reach a decision. 

  • Shortening of of come down the (pike, line, etc.) To be about to happen. 

  • To return from an elevated state of consciousness or emotion. 

  • To rain. 

  • To decrease. 

  • To graduate from university, especially an Oxbridge university. 

  • To be demolished. 

  • To be passed through time. 

overfall

verb
  • To fall over; to topple. 

  • To fall on or spill over so as to cover (something). 

  • To change or affect so as to pervade (something); to come over 

  • To fall over; to spill from an edge or height. 

noun
  • Part of a garment that hangs so as to cover a lower part. 

  • A turbulent section of a body of water, caused by strong currents passing over submerged ridges. 

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