Where does “unnoxious” come from?

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

unnoxious (English): Not noxious

Definitions

  1. Not noxious

Ancestry of “unnoxious”, step by step

unnoxious 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 un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European neḱ-Every word from Proto-Indo-European noks-Every word from Latin noxa