Where does “𐾀𐽳𐽼𐽾𐽰𐽲” come from?

𐾀𐽳𐽼𐽾𐽰𐽲 (Old Uyghur) comes from Proto-Turkic toprak — earth, soil.

𐾀𐽳𐽼𐽾𐽰𐽲 (Old Uyghur): dirt, soil, earth, land