Where does “مستخدم” come from?

مستخدم (Arabic) comes from Arabic اِسْتَخْدَمَ, from Arabic د, from Persian دب.

مستخدم (Arabic): employer; user; employee

Definitions

Step	Language	Word	Meaning
1	Arabic	اِسْتَخْدَمَ	to use, hire
2	Arabic	د	—
3	Persian	دب	—

مستخدم — Etymology, Origin & Word History | Etymology Explorer