Where does “کاغذ” come from?

کاغذ (Classical Persian) comes from Sogdian 𐼸𐼰𐼲𐼹𐼰, from Old Chinese 紙.

Ancestry of “کاغذ”, step by step

Step	Language	Word	Meaning
1	Sogdian	𐼸𐼰𐼲𐼹𐼰	—
2	Old Chinese	紙	—

کاغذ — Etymology, Origin & Word History | Etymology Explorer