Where does “𐽰𐽾𐽸𐽰𐽺𐽶” come from?

𐽰𐽾𐽸𐽰𐽺𐽶 (Old Uyghur) comes from Sogdian 𐼘𐼚𐼎, from Sanskrit रत्न, from Sanskrit राति — a favor, grace, gift, oblation; "the Giver";...