暂无解释，欢迎补充。

宋本廣韻

廣韻目次：下平九麻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遐胡加匣麻二開平聲麻開口二等假麻ɣaghra／hea

English

at the feet; to learn; now， shoes， (dialect) to take a stride， to sit astride on; to straddle; to ride， to stride over (a ditch， etc。)