forgo vs pack in

forgo

verb
  • To do without, to abandon, to renounce. 

  • To let pass, to leave alone, to let go. 

  • To refrain from, to abstain from, to pass up, to withgo. 

pack in

verb
  • To give up, to quit. 

  • To include (especially of a large amount). 

  • To transport to base camp, especially by backpack. 

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