Where does “radius” come from?

radius (Crimean Tatar) comes from Russian ра́диус, from Latin radius, from English -án, from Middle English -an.

radius (Crimean Tatar): radius line segment or length of this line segment

Definitions

  1. radius line segment or length of this line segment

Ancestry of “radius”, step by step

StepLanguageWordMeaning
1Russianра́диусradius (line segment)
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 →