Italian word raggio comes from Proto-Indo-European *wréh₂ds (Root.)

Detailed word origin of raggio

Dictionary entry	Language	Definition
*wréh₂ds	Proto-Indo-European (ine-pro)	Root.
radius	Latin (lat)	Ray (of light). Spoke (of a wheel). Staff, rod.
raggio	Italian (ita)	Radius (maths). Ray, beam (of light etc). Spoke (of wheel).

Words with the same origin as raggio