derive vs throw away

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. 

throw away

verb
  • To waste, to squander. 

  • To intentionally throw an incomplete pass. 

  • To give lightly, in an offhand manner. 

  • To discard (trash, garbage, or the like), to toss out, to put in the trash, to dispose of. 

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