Where does “opinion” come from?

opinion (Middle English) comes from Middle French opinion, from Latin opīniō, from Latin -iō, from Proto-West Germanic -jō, from Proto-Indo-European -yéti, from Proto-Indo-European yé-, from Chichewa iye — he, she.

Ancestry of “opinion”, step by step

StepLanguageWordMeaning
1Middle Frenchopinionopinion thought, estimation
2Latinopīniōopinion, conjecture, imagination, fancy, belief, expectation
3Latin-iō—
4Proto-West Germanic-jōForms agent nouns from verbs
5Proto-Indo-European-yétiCreates intransitive, often deponent,...
6Proto-Indo-Europeanyé-—
7Chichewaiyehe, she

Words derived from “opinion”

Every word from Chichewa iye →Every word from Proto-Indo-European -yéti →Every word from Latin -iō →