avert vs bear off

avert

verb
  • To turn aside or away. 

  • To ward off, or prevent, the occurrence or effects of. 

bear off

verb
  • To restrain; to keep from approaching. 

  • To remove to a distance; to keep clear from rubbing against anything. 

  • To gain; to carry off, as a prize. 

  • To remove one of one's own checkers from the board. The first player to bear off all checkers is the winner. 

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