㘛

Han character

 * 1) (non-classical form of 嵌) deep valley
 * 2) piece of music of a particular minority group

Etymology 1
Found in 龍龕手鑑.

Etymology 2
Found in 《字彙補》:

But the cited work, 《唐書》, has it as 𭍌:

The word 𭍌聰網摩 appears to be a transcription from the Pyu language.