abet vs come to someone's aid

abet

verb
  • To incite; to assist or encourage by aid or countenance in crime. 

  • To support, countenance, maintain, uphold, or aid (any good cause, opinion, or action); to maintain. 

come to someone's aid

verb
  • To assist and rescue someone. 

How often have the words abet and come to someone's aid occurred in a corpus of books? (source: Google Ngram Viewer )