foray vs resistance

foray

verb
  • To participate in a foray. 

  • To do or attempt something outside one's typical area of expertise. 

noun
  • A brief excursion or attempt, especially outside one's accustomed sphere. 

  • A sudden or irregular incursion in border warfare; hence, any irregular incursion for war or spoils; a raid. 

resistance

noun
  • The act of resisting, or the capacity to resist. 

  • An underground organisation engaged in a struggle for liberation from forceful occupation; a resistance movement. 

  • A force that tends to oppose motion. 

  • electrical resistance. 

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