pickpocket vs plunder

pickpocket

verb
  • To pick pockets; to steal. 

noun
  • One who steals from the pocket of a passerby, usually by sleight of hand. 

plunder

verb
  • To take by force or wrongfully; to commit robbery or looting, to raid. 

  • To take unexpectedly. 

  • To make extensive (over)use of, as if by plundering; to use or use up wrongfully. 

  • To take (goods) by pillage. 

  • To pillage, take or destroy all the goods of, by force (as in war); to raid, sack. 

noun
  • The loot attained by plundering. 

  • An instance of plundering. 

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