Where does “rad” come from?

rad (Serbo-Croatian) comes from English rad, from English radiation, from Latin radiatio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis- — small stone, pebble; gravel, rubble.

Ancestry of “rad”, step by step

Step	Language	Word	Meaning
1	English	rad	Clipping of radical; excellent; A non-SI unit of...
2	English	radiation	The shooting forth of anything from a point or...
3	Latin	radiatio	glittering, shining, radiation
4	Latin	-tiō	—
5	Latin	dissertātiō	—
6	Latin	dissertus	arranged, disposed; explained
7	Latin	disserere	second-person singular future passive indicative...
8	Latin	dis-	asunder, apart, in two; reversal, removal;...
9	Latin	calceus	shoe
10	Latin	calx	limestone; chalk; the finish line
11	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Words derived from “rad”

radničin
radnica
radionica
radiša

Every word from Ancient Greek χάλιξ →