healful vs healthful

healful

adj
  • Affording health or salvation. 

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

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

healthful

adj
  • Conducive to moral or spiritual prosperity; salutary. 

  • Beneficial to bodily health. 

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