Etymology of the English word radius
the English word
radiusderived from the Latin word
radius (rod, spoke; ray; rod)
Date
The earliest known usage of radius in English dates from the 16th century.
Derivations in English
radian,
circumradius,
inradiusCognates
German
Radius, Icelandic
radíus, Latin
radius, Lithuanian
radiusas, Russian
paдиyc, Swedish
radieUsage
Word found in Modern English
