incite vs palliate

incite

verb
  • To stir up or excite; to rouse or goad into action. 

palliate

verb
  • To placate or mollify. 

  • To cover or disguise the seriousness of (a mistake, offence etc.) by excuses and apologies. 

  • To relieve the symptoms of; to ameliorate. 

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