Yupian (Yuankanben) Guangyun Jiyun Shiming Fangyan Erya Boya (according to Jiyun) Guangya (according to Jiyun)
id du Shuowen
Shuowen: volume 10b, page 224a.09 addition
radical:
408 合聲
fanqie: 苦狹切 [kʰɐp]
this character is not in the Duanzhu