get hold of vs relinquish

get hold of

verb
  • To control or stabilize (oneself). 

  • To pick up or grab. 

  • To obtain. 

  • To contact (a person). 

relinquish

verb
  • To metaphorically surrender, yield control or possession. 

  • To give up, abandon or retire from something. To trade away. 

  • To let go (free, away), physically release. 

  • To accept to give up, withdraw etc. 

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