Where does “ج” come from?

ج (Pahari-Potwari) comes from Classical Persian ج, from Arabic ج — Abbreviation of جَمْع.

Ancestry of “ج”, step by step

StepLanguageWordMeaning
1Classical Persianج—
2ArabicجAbbreviation of جَمْع
Every word from Arabic ج →Every word from Classical Persian ج →
ج — Etymology, Origin & Word History | Etymology Explorer