Where does “unbelievably” come from?

Unbelievably derives from English unbelievable, which combines English un- with believable, ultimately tracing through Latin unus and Proto-Indo-European óynos and ano- to the negation ne.

unbelievably (English): In a manner that one does not or cannot believe;...

Definitions

  1. In a manner that one does not or cannot believe;...

Ancestry of “unbelievably”, step by step

StepLanguageWordMeaning
1EnglishunbelievableNot to be believed; Incredible; so surprising it...
2EnglishUn-not
3EnglishstillNot moving; calm; Not effervescing; not...
4Old Englishstillanbecome calm, abate, subside; calm, pacify,...
5Proto-West Germanicstillijanto make still, quiet
6Proto-West Germanic-janCreates denominative verbs from nouns; Creates...
7Proto-Germanic-janąDerives denominatives from nouns and factitives...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she
Every word from Chichewa iyeEvery word from Proto-Germanic -janąEvery word from English Un-