foray vs maraud

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. 

maraud

verb
  • To move about in roving fashion looking for plunder. 

  • To go about aggressively or in a predatory manner. 

  • To raid and pillage. 

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