forlet vs give over

forlet

verb
  • To abandon; give up; leave; leave behind; forsake; desert; neglect. 

  • To forget. 

give over

verb
  • To give up; abandon; stop. 

  • To devote or resign to a particular purpose or activity; to yield completely. 

  • To quit, to abandon. 

  • To entrust (something) to another. 

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