abrade vs scrub up

abrade

verb
  • To rub or wear off; erode. 

  • To cause the surface to become more rough. 

  • To undergo abrasion. 

  • To wear down or exhaust, as a person; irritate. 

  • To irritate by rubbing; chafe. 

scrub up

verb
  • To clean or wash by scrubbing. 

  • To dress up. 

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