cling to vs give up

cling to

verb
  • To remain by (someone's) side; to refuse to leave the company of. 

  • To have an intense emotional dependency on (someone). 

  • Used other than figuratively or idiomatically: see cling, to. 

give up

verb
  • To abandon (someone or something) 

  • To admit defeat, capitulate 

  • Become fully taken over by a certain quality, activity, trait, &c. 

  • To relinquish (something) 

  • To execute a trade on behalf of another broker. 

  • To stop or quit (an activity, etc.) 

  • To surrender (someone or something) 

  • To lose hope concerning (someone or something) 

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