Where does “noxiousness” come from?

noxiousness (English) comes from English noxious, from Latin noxius, from Latin noxa, from Proto-Indo-European noks-, from Proto-Indo-European neḱ- — to perish, disappear.

noxiousness (English): the state of being noxious

Definitions

  1. the state of being noxious

Ancestry of “noxiousness”, step by step

noxiousness traces back through two separate lines of ancestry.

via English noxious

StepLanguageWordMeaning
1EnglishnoxiousHarmful; injurious
2LatinnoxiusHurtful, harmful, injurious, noxious; Guilty,...
3Latinnoxahurt, harm, injury; fault, offence, crime
4Proto-Indo-Europeannoks-
5Proto-Indo-Europeanneḱ-to perish, disappear

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 neḱ-Every word from Proto-Indo-European noks-Every word from Latin noxa