Where does “ارضی” come from?

ارضی (Persian) comes from Arabic أَرْضِيّ — earthly, terrestrial, of ground.

Ancestry of “ارضی”, step by step

Step	Language	Word	Meaning
1	Arabic	أَرْضِيّ	earthly, terrestrial, of ground

ارضی — Etymology, Origin & Word History | Etymology Explorer