reformatory vs reparative

reformatory

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

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

reparative

adj
  • Of, pertaining to, or being a reparation. 

  • Tending to or intended to repair. 

noun
  • That which repairs. 

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