Where does “microradian” come from?

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

microradian (English): A unit of angle equal to one millionth of a...

Definitions

  1. A unit of angle equal to one millionth of a...

Ancestry of “microradian”, step by step

microradian traces back through two separate lines of ancestry.

via English radian

StepLanguageWordMeaning
1EnglishradianIn the International System of Units, the derived...
2EnglishradiusThe long bone in the forearm, on the side of the...
3Latinradiusray; staff, rod; spoke
4English-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
5Middle English-an

via English micro

StepLanguageWordMeaning
1EnglishmicroSmall, relatively small; short form of...
2Ancient Greekμικρόςlittle, small
3Proto-Indo-Europeanmēy-soft, tender, dear
Every word from Middle English -anEvery word from English -ánEvery word from Latin radius