Where does “unthinkably” come from?

unthinkably (English) comes from English unthinkable, from English Un-, from Middle English un-, from Old English un-, from Proto-West Germanic un-, from Proto-Germanic un-, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

unthinkably (English): In an unthinkable manner

Definitions

  1. In an unthinkable manner

Ancestry of “unthinkably”, step by step

StepLanguageWordMeaning
1EnglishunthinkableIncapable of being believed; incredible;...
2EnglishUn-not
3Middle Englishun-—
4Old Englishun-negation or absence of: un-, non-; bad; forms...
5Proto-West Germanicun-not, un-
6Proto-Germanicun-not, un-
7Proto-Indo-Europeann̥-not, un-
8Proto-Indo-Europeannenot
Every word from Proto-Indo-European ne →