康熙字典
【子集下】【刀字部】㓠 ·康熙筆画:7 ·部外筆画:5
《唐韻》《集韻》? 多忝切,音點。刀缺。一曰斫也。又《集韻》都念切,點去聲。《說文》缺也。詩白圭之㓠 。《玉篇》或作玷。
(same as 玷) a flaw; a defect, to cut with a sword; to chop