Where does “healthful” come from?

Healthful comes from Middle English helþeful, a derivative formation from the noun health with the productive suffix -ful meaning "full of" or "characterized by."

healthful (English): Beneficial to bodily health; Conducive to moral...

Definitions

  1. Beneficial to bodily health; Conducive to moral...

Ancestry of “healthful”, step by step

healthful traces back through two separate lines of ancestry.

via English health

StepLanguageWordMeaning
1EnglishhealthThe state of being free from physical or...
2Middle Englishhelþesoundness; health; recovery
3Old Englishhǣlþ—
4Proto-Germanichailiþōwholeness, health
5Proto-Germanichailazwhole, unbroken, intact; entire, complete; hale,...
6Proto-Indo-European*kéh₂iloshealthy

via Middle English helþful

StepLanguageWordMeaning
1Middle Englishhelþful—

Words derived from “healthful”

Every word from Proto-Indo-European *kéh₂ilos →Every word from Proto-Germanic hailaz →Every word from Proto-Germanic hailiþō →