submit vs tap out

submit

verb
  • To win a fight against (an opponent) by submission. 

  • To yield (something) to another, as when defeated. 

  • To enter or put forward for approval, consideration, marking etc. 

  • To yield or give way to another. 

  • To subject; to put through a process. 

tap out

verb
  • To force (an opponent) to submit. 

  • To relieve a person of duty, such as a casino worker or wrestler in a tag-team match. 

  • To run out of money in a gambling establishment. 

  • To produce (a message, rhythm, or other thing) by tapping. 

  • To deplete, especially of a liquid; to finish the last of a drink. 

  • To submit to an opponent by tapping one's hand repeatedly either on the arena or the opponent's body. 

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