millstone; grindstone, to rub; to grind; to polish; to wear, to sharpen ( a knife), to train; to harden; to temper
䃀【午集下】【石部】 康熙筆画:13画,部外筆画:8画
《廣韻》七內切《集韻》取內切,音倅。磑也。
又《五音集韻》楚懷切。㼽也。