Where does “radio-” come from?

radio- (Latin) comes from Latin radius, from English -án, from Middle English -an.

Ancestry of “radio-”, step by step

StepLanguageWordMeaning
1Latinradiusray; staff, rod; spoke
2English-ánOf or pertaining to;. Often added to words of Latin origin, but also used with words of other origins. When a word ends in a
3Middle English-an

Words derived from “radio-

Every word from Middle English -an
radio- — Etymology, Origin & Word History | Etymology Explorer