暂无解释，欢迎补充。

宋本廣韻

廣韻目次：入十九鐸小韻反切聲母韻母聲調平水韻等呼韻攝韻部国际音标罗马字博補各幫鐸合入聲藥合口一等宕唐puɑkpuak

方言集汇

◎ 粤语：bok6 pok3

English

short sleeves shirt， clothes that have no lining， (same as 薄) thin; light; slight