coefficient vs reformatory

coefficient

adj
  • Cooperating. 

noun
  • A constant by which an algebraic term is multiplied. 

  • A number, value, or item that serves as a measure of some property or characteristic. 

reformatory

adj
  • Of, pertaining to, or conducive to reform; reformative. 

noun
  • A prison, especially one for juveniles; a reform school. 

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