tick off vs unlist

tick off

verb
  • To sign with a tick. 

  • To annoy, aggravate. 

  • To reprimand. 

  • To list (create or recite a list). 

unlist

verb
  • To undo the process of listing; to remove something from a list. 

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