alienate vs factionalize

alienate

verb
  • To convey or transfer to another, as title, property, or right; to part voluntarily with ownership of. 

  • To estrange; to withdraw affections or attention from; to make indifferent or averse, where love or friendship before subsisted. 

  • To cause one to feel unable to relate. 

factionalize

verb
  • To split into factions 

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