Where does “unpleasantness” come from?

Unpleasantness derives from Middle English unpleasant plus the suffix -nesse, from Old English -nes, tracing to Proto-Germanic -inassuz and -inōną, ultimately denoting a quality or state of being.

unpleasantness (English): The property of being unpleasant or disagreeable;...

Definitions

  1. The property of being unpleasant or disagreeable;...

Ancestry of “unpleasantness”, step by step

StepLanguageWordMeaning
1English-nessAppended to adjectives to form nouns meaning "the...
2Middle English-nesseAffixed to adjectives to form abstract nouns...
3Old English-nesUsed to form abstract nouns, usually from...
4Proto-West Germanic-nassīUsed to form abstract nouns, usually from...
5Proto-Germanic-inassuz-ness
6Proto-West Germanic-ness, -th
7Proto-Germanic-į̄-th
8Proto-Indo-European-íh₂
9Proto-Indo-European-h₂Creates collective nouns, which refer to groups...
Every word from Proto-Indo-European -h₂Every word from English -nessEvery word from Old English -nes