Yupian (Yuankanben) Guangyun Jiyun Shiming Fangyan Erya Boya (according to Jiyun) Guangya (according to Jiyun)
id du Shuowen
Shuowen: volume 07a, page 148a.12 addition
radical:
257 白聲
fanqie: 匹各切 [pʰɑk]
Variants :
this character is not in the Duanzhu