ameliorative vs restorative

ameliorative

adj
  • Able to repair or ameliorate. 

  • Of or relating to conceptual engineering, the normative study of which conceptual demarcation is most conducive to solve the problems the concept is a priori taken to solve. 

  • Suggesting or relating to a positive or approving evaluation. 

noun
  • A linguistic unit (such as a word, morpheme) that implies a positive or approving evaluation. 

  • That which betters or improves. 

restorative

adj
  • Serving to restore. 

noun
  • An alcoholic drink, especially with tonic. 

  • Something with restoring properties. 

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