Where does “impenetrableness” come from?

impenetrableness (English) comes from English impenetrable, from Middle French impenetrable, from Latin impenetrabilis, from Latin penetrabilis, from Latin -bilis, from Proto-Italic -ðlis, from Proto-Indo-European -dʰlis, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...

impenetrableness (English): The quality of being impenetrable

Definitions

  1. The quality of being impenetrable

Ancestry of “impenetrableness”, step by step

impenetrableness traces back through two separate lines of ancestry.

via English impenetrable

StepLanguageWordMeaning
1EnglishimpenetrableNot penetrable; Incomprehensible; fathomless;...
2Middle Frenchimpenetrable
3Latinimpenetrabilisimpenetrable; unconquerable, unyielding
4Latinpenetrabilispenetrable; piercing
5Latin-bilis-ble
6Proto-Italic-ðlisForms adjectives from verb stems indicating capacity or worth of being acted on
7Proto-Indo-European-dʰlis
8Proto-Indo-European-dʰlomAlternative form of *-trom; instrumental suffix;...

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 -dʰlomEvery word from Latin -bilisEvery word from Latin penetrabilis
impenetrableness — Etymology, Origin & Word History | Etymology Explorer