Where does “thinness” come from?

Thinness comes from Middle English thynnesse, derived from Old English þynnes, meaning the quality or state of being thin.

thinness (English): The state or quality of being thin

Definitions

  1. The state or quality of being thin

Ancestry of “thinness”, step by step

thinness traces back through two separate lines of ancestry.

via English thin

StepLanguageWordMeaning
1EnglishthinHaving little thickness or extent from one...
2Middle Englishthinnethin, narrow, skinny, slender; weak; sparse,...
3Old Englishþynnethin
4Proto-West Germanicþunnīthin
5Proto-Germanicþunnuzthin
6Proto-Indo-Europeanténh₂usthin
7Proto-Indo-Europeantenh₂-to stretch, to extend
8Proto-Indo-Europeanten-to stretch, to extend

via Middle English thynnesse

StepLanguageWordMeaning
1Middle Englishthynnesse
2Old Englishþynnesthinness, slightness of density, lack of density,...
Every word from Proto-Indo-European ten-