onrush vs overtake

onrush

noun
  • A forceful rush or flow forward. 

  • An aggressive assault. 

verb
  • To assault aggressively. 

  • To rush or flow forward forcefully. 

overtake

noun
  • An act of overtaking; an overtaking maneuver. 

verb
  • To become greater than something else 

  • To occur unexpectedly; take by surprise; surprise and overcome; carry away 

  • To pass a slower moving object or entity (on the side closest to oncoming traffic). 

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