stockade vs workhouse

stockade

noun
  • a military prison 

  • an enclosure protected by a wall of wooden posts 

verb
  • To enclose in a stockade. 

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 stockade and workhouse occurred in a corpus of books? (source: Google Ngram Viewer )