Where does “радијус//radijus” come from?

радијус//radijus (Serbo-Croatian) comes from German Radius, from Latin radius, from English -án, from Middle English -an.

Ancestry of “радијус//radijus”, step by step

StepLanguageWordMeaning
1GermanRadiusradius bone
2Latinradiusray; staff, rod; spoke
3English-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
4Middle English-an—
Every word from Middle English -an →Every word from English -án →Every word from Latin radius →