approve vs recognize

approve

verb
  • To consider worthy (to); to be pleased (with); to accept. 

  • To officially sanction; to ratify; to confirm; to set as satisfactory. 

  • To make profit of; to convert to one's own profit — said especially of waste or common land appropriated by the lord of the manor. 

  • To regard as good; to commend; to be pleased with; to think well of. 

recognize

verb
  • To acknowledge or consider (as being a certain thing or having a certain quality or property). 

  • To match (something or someone which one currently perceives) to a memory of some previous encounter with the same person or thing. 

  • To realize or discover the nature of something; apprehend quality in. 

  • To show formal appreciation of, as with an award, commendation etc. 

  • to cognize again 

  • To have the property to bind to specific antigens. 

  • To acknowledge the existence or legality of; to treat as valid or worthy of consideration. 

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