stalag vs workhouse

stalag

noun
  • A German prisoner-of-war camp, especially in World War II. 

  • A genre of Nazi exploitation Holocaust pornography in Israel that flourished in the 1950s and early 1960s. 

workhouse

noun
  • A prison in which the sentence includes manual labour. 

  • An institution for the poor homeless, funded by the local parish, where the able-bodied were required to work. 

verb
  • To place (a person) in the workhouse (institution for the poor). 

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