Wu Collection, Upper Volume
Radical: Jade (yù)
珟
Kangxi strokes: 11
Page 730, Entry 28
Broad Rhymes (Guangyun): Pronounced su
Collected Rhymes (Jiyun): Pronounced su; the pronunciation is the same as the word for respectful (sù).
Broad Rhymes (Guangyun): Refers to decayed jade. Also used as a surname.
Collected Rhymes (Jiyun): Refers to a craftsman who carves jade.
Correct Meaning Guide (Zhengzitong): Note: Various scholars believe that the character formed by adding a dot to the middle stroke of the character for jade refers to decayed jade and is also used as a surname; its pronunciation is the same as the word for millet (sù). The pronunciation and meaning provided in the original annotation are the same as the explanation for the character for jade (wáng). Modifying the character to this form is incorrect. Research into the Register of Surnames shows there is a surname spelled su (sù), but there is no such surname as this character; the claims made by various scholars are all incorrect.