Where does “مقدار” come from?

مقدار (Arabic) comes from Arabic د, from Arabic اِسْتَخْدَمَ — to use, hire.

مقدار (Arabic): amount, quantity

Definitions

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

مقدار — Etymology, Origin & Word History | Etymology Explorer