Where does “odious” come from?

odious (Middle English) comes from Old French odieus, from Latin odiōsus, from Latin odium, from Proto-Indo-European h₃ed- — to smell, stink; to hate; to bite.

Ancestry of “odious”, step by step

StepLanguageWordMeaning
1Old Frenchodieus
2Latinodiōsushateful, odious, vexatious, offensive, unpleasant, disagreeable, annoying, troublesome
3Latinodiumhatred, ill-will, aversion, dislike, disgust,...
4Proto-Indo-Europeanh₃ed-to smell, stink; to hate; to bite

Words derived from “odious

Every word from Proto-Indo-European h₃ed-Every word from Latin odiumEvery word from Latin odiōsus
odious — Etymology, Origin & Word History | Etymology Explorer