derive vs reap

derive

verb
  • To obtain or receive (something) from something else. 

  • To deduce (a conclusion) by reasoning. 

  • To originate or stem (from). 

  • To create (a compound) from another by means of a reaction. 

  • To find the derivation of (a word or phrase). 

  • To turn the course of (water, etc.); to divert and distribute into subordinate channels. 

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 derive and reap occurred in a corpus of books? (source: Google Ngram Viewer )