暂无解释，欢迎补充。

宋本廣韻

廣韻目次：入十八藥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㲋丑略徹藥開入聲藥開口三等宕陽ţʰĭakthriak／thiak

方言集汇

◎ 粤语：coek3

English

a kind of animals (like rabbit， it is blue colored and much bigger)