Where does “terrestrialness” come from?

terrestrialness (English) comes from English Ness, from Middle English nesse, from Old English næs, from Proto-Germanic nasją, from Proto-Indo-European néh₂s — nose.

terrestrialness (English): Quality of being terrestrial; terrestriality

Definitions

  1. Quality of being terrestrial; terrestriality

Ancestry of “terrestrialness”, step by step

terrestrialness traces back through two separate lines of ancestry.

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

via English Terrestrial

StepLanguageWordMeaning
1EnglishTerrestrialAn inhabitant of the planet Earth
2LatinterrestrisOf or pertaining to the earth or land;...
3LatinTerraTerra goddess of the Earth
4Proto-Indo-Europeanters-dry
Every word from Proto-Indo-European néh₂s