beat off vs relinquish

beat off

verb
  • To waste time. 

  • To drive something away with blows or military force. 

  • To masturbate, usually a man of himself. 

relinquish

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

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

  • To metaphorically surrender, yield control or possession. 

  • To accept to give up, withdraw etc. 

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