employ vs housing

employ

noun
  • The state of being an employee; employment. 

verb
  • To hire (somebody for work or a job). 

  • To use (somebody for a job, or something for a task). 

  • To make busy. 

housing

noun
  • The activity of enclosing something or providing a residence for someone. 

  • A mechanical component's container or covering. 

  • Residences, collectively. 

  • A niche for a statue. 

  • A houseline. 

  • That portion of a mast or bowsprit which is beneath the deck or within the vessel. 

  • A cover or cloth for a horse's saddle, as an ornamental or military appendage; a saddlecloth; a horse cloth; in plural, trappings. 

  • An appendage to the harness or collar of a harness. 

  • The space taken out of one solid to admit the insertion of part of another, such as the end of one timber in the side of another. 

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