Where does “perviousness” come from?

perviousness (English) comes from English pervious, from Latin pervius, from Latin per, from Latin Ad, from Latin illic, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

perviousness (English): The quality or state of being pervious

Definitions

  1. The quality or state of being pervious

Ancestry of “perviousness”, step by step

perviousness traces back through two separate lines of ancestry.

via English pervious

StepLanguageWordMeaning
1EnglishperviousAdmitting passage; capable of being penetrated by...
2LatinperviusHaving a passage through; passable, traversable,...
3Latinperthrough, by means of; throughout, during
4LatinAdtoward, to
5Latinilliche, she, it, yonder, that, overthere; in that...
6Latinillethat; those; "; demonstrative pronoun "; that...
7LatinolleArchaic form of ille
8Proto-Italic*olnosthat

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-Italic *olnos
perviousness — Etymology, Origin & Word History | Etymology Explorer