Undefined Character (U+140DF)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𔃟` `𔃟`
UTF-8 Encoding:	`0xF0 0x94 0x83 0x9F`
UTF-16 Encoding:	`0xD810 0xDCDF`
UTF-32 Encoding:	`0x000140DF`

References