curative vs healful

curative

adj
  • Possessing the ability to cure, to heal or treat illness. 

  • Remediative. 

  • of a verb, conveying the meaning "the agent makes a patient do something" 

noun
  • A substance that acts as a cure. 

healful

adj
  • Tending or serving to heal; health-promoting; healing. 

  • Full of health or safety; healthy; whole; sound; safe. 

  • Affording health or salvation. 

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