bilk vs trouser

bilk

verb
  • To do someone out of their due; to deceive or defraud, to cheat (someone). 

  • To spoil the score of (someone) in cribbage. 

  • To steal fuel from a self-service filling station by driving away without paying after filling the fuel tank or other container; to commit a drive-off. 

noun
  • The spoiling of someone's score in the crib. 

trouser

verb
  • To secretively steal (an item or money) for personal use. 

  • To put (money) into one's trouser pocket; to pocket. 

  • To take and keep (something, especially money, that is not one's own); to pocket. 

noun
  • A pair of trousers. 

  • Of or relating to trousers. 

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