Etymology of the English word radian
the English word
radianderived from the English word
radiusderived from the Latin word
radius (rod, spoke; ray; rod)
using the English suffix
-anDate
The earliest known usage of radian in English dates from the 19th century.
Derivations in English
steradian,
milliradian,
srDerivations in other languages
Spanish
radiánUsage
Word found in Modern English
