Where does “unaudibly” come from?

unaudibly (English) comes from English unaudible, from English audible, from Middle French audible, from Late Latin audibilis, from Latin audīre, from Proto-Indo-European h₂ew-is-d-, from Proto-Indo-European dʰeh₁- — to do, put, place.

Ancestry of “unaudibly”, step by step

unaudibly traces back through two separate lines of ancestry.

via English unaudible

StepLanguageWordMeaning
1Englishunaudibleinaudible
2EnglishaudibleAble to be heard; To change the play at the line...
3Middle Frenchaudible—
4Late Latinaudibilis—
5Latinaudīre—
6Proto-Indo-Europeanh₂ew-is-d-—
7Proto-Indo-Europeandʰeh₁-to do, put, place

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European dʰeh₁- →Every word from Proto-Indo-European h₂ew-is-d- →Every word from Latin audīre →