infighting vs quarrelsomeness

infighting

noun
  • Fighting or quarreling among the members of a single group or side. 

  • Fighting with one's opponent closer than arm's length. 

quarrelsomeness

noun
  • The quality of being quarrelsome; an argumentative nature. 

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