Where does “Ĉinujo” come from?

Ĉinujo (Esperanto) comes from Esperanto ĉino, from Persian چین, from Arabic الصِّين, from Middle Persian 𐭰𐭩𐭭, from Sanskrit चीन, from Old Chinese 秦 — {{w|Qin |State of Qin}}, {{w|Qin dynasty}}; Qin.

Ancestry of “Ĉinujo”, step by step

Step	Language	Word	Meaning
1	Esperanto	ĉino	a Chinese person; a citizen of China
2	Persian	چین	wrinkle; crease; fold
3	Arabic	الصِّين	—
4	Middle Persian	𐭰𐭩𐭭	China
5	Sanskrit	चीन	the Chinese people; China; a bandage for the...
6	Old Chinese	秦	{{w\|Qin \|State of Qin}}, {{w\|Qin dynasty}}; Qin

Every word from Old Chinese 秦 →Every word from Sanskrit चीन →Every word from Middle Persian 𐭰𐭩𐭭 →