Where does “untangibleness” come from?

untangibleness (English) comes from English untangible, from English tangible, from Middle French tangible, from Late Latin tangibilis, from Latin tangere, from Proto-Italic *tangō, from Proto-Indo-European denḱ- — to bite.

Ancestry of “untangibleness”, step by step

untangibleness traces back through two separate lines of ancestry.

via English untangible

StepLanguageWordMeaning
1EnglishuntangibleArchaic form of intangible
2EnglishtangibleTouchable; able to be touched or felt;...
3Middle Frenchtangible
4Late Latintangibilistouchable, tangible; able to be touched or sensed
5Latintangeresecond-person singular future passive indicative...
6Proto-Italic*tangō
7Proto-Indo-Europeandenḱ-to bite

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European denḱ-Every word from Proto-Italic *tangōEvery word from Latin tangere