cost vs reap

cost

verb
  • To cause something to be lost; to cause the expenditure or relinquishment of. 

  • To require to be borne or suffered; to cause. 

  • To calculate or estimate a price. 

  • To incur a charge of; to require payment of a (specified) price. 

noun
  • Quality; condition; property; value; worth; a wont or habit; disposition; nature; kind; characteristic. 

  • A negative consequence or loss that occurs or is required to occur. 

  • Amount of money, time, etc. that is required or used. 

  • A cottise. 

reap

verb
  • To obtain or receive as a reward, in a good or a bad sense. 

  • To terminate a child process that has previously exited, thereby removing it from the process table. 

  • To gather (e.g. a harvest) by cutting. 

  • To cut (for example a grain) with a sickle, scythe, or reaping machine 

noun
  • A bundle of grain; a handful of grain laid down by the reaper as it is cut. 

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