overcharge vs rob

overcharge

verb
  • To charge (someone) with an inflated number or degree of legal charges (for example, charging them with a more serious crime than was committed); to upcharge. 

  • To charge (somebody) more money than the correct amount or to surpass a certain limit while charging a bill. 

  • To continue to charge (an electrical device) beyond its capacity. 

noun
  • An excessive load or burden. 

  • Any amount erroneously charged to a customer above the correct price for a product or service. 

  • An excessive charge in an account. 

rob

verb
  • To deprive of, or withhold from, unjustly or injuriously; to defraud. 

  • To steal. 

  • To burgle. 

  • To deprive (of). 

  • To steal from, especially using force or violence. 

  • To commit robbery. 

  • To take possession of the ball, puck etc. from. 

noun
  • A syrup made of evaporating fruit juice over a fire, usually mixed with sugar or honey, and especially used for medicinal purposes. 

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