Where does “رَاضٍ” come from?

رَاضٍ (Arabic) comes from Arabic رَضِيَ — to be satisfied, to be pleased.

Ancestry of “رَاضٍ”, step by step

Step	Language	Word	Meaning
1	Arabic	رَضِيَ	to be satisfied, to be pleased

رَاضٍ — Etymology, Origin & Word History | Etymology Explorer