Where does “𑀕𑀽𑀳” come from?

𑀕𑀽𑀳 (Prakrit) comes from Sanskrit गूथ, from Proto-Indo-European g(ʷ)uH- — feces.

Ancestry of “𑀕𑀽𑀳”, step by step

Step	Language	Word	Meaning
1	Sanskrit	गूथ	feces, excrement, ordure
2	Proto-Indo-European	g(ʷ)uH-	feces