predilection vs weakness

predilection

noun
  • A condition of favoring or liking; a tendency towards; proclivity; predisposition. 

weakness

noun
  • A special fondness or desire. 

  • An inadequate quality; fault 

  • The condition of being weak. 

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