Where does “unhelpful” come from?

Unhelpful derives from English help, which comes from Proto-Indo-European pleh₁-, meaning to fill or accomplish, via the prefix un- and suffix -ful.

unhelpful (English): Not providing help or assistance; not helpful

Definitions

  1. Not providing help or assistance; not helpful

Ancestry of “unhelpful”, step by step

StepLanguageWordMeaning
1EnglishhelpfulFurnishing help; giving aid; useful
2English-fulUsed to form adjectives from nouns. Full of,...
3Middle English-fulAppended to nouns to form adjectives denoting...
4Old English-fulfull of; -ful
5Proto-Germanic-fullaz-ful
6Proto-Germanicfullazfull; the whole, the entire
7Proto-Indo-Europeanpl̥h₁nósfull
8Proto-Indo-Europeanpleh₁-to fill

Words derived from “unhelpful

Every word from Proto-Indo-European pleh₁-