cause offense to vs gross out

cause offense to

gross out

verb
  • To sicken or distress (someone) by being disgusting, gory, or lewd. 

noun
  • Something which sickens, causes distress, or appalls by reason of being disgusting, gory, or repulsive. 

How often have the words cause offense to and gross out occurred in a corpus of books? (source: Google Ngram Viewer )