Where does “undecipherably” come from?

undecipherably (English) comes from English undecipherable, 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.

undecipherably (English): In an undecipherable manner

Definitions

  1. In an undecipherable manner

Ancestry of “undecipherably”, step by step

undecipherably traces back through two separate lines of ancestry.

via English undecipherable

StepLanguageWordMeaning
1EnglishundecipherableNot easily deciphered; difficult to read
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

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European neEvery word from English Un-Every word from Proto-Indo-European n̥-