the moon is dimmed; darkness, the word used especially by Triad Society ( a secret society during the Ching Dynasty dedicated to the overthrow of the Manchus and the restoration the Manchus and the restoration of the Ming Dynasty, the character means the same as 月
?【辰集上】【月部】 康熙筆畫：10畫，部外筆畫：6畫
《集韻》虎孔切，音嗊。??，月不明也。
月【卷七】【月部】
闕也。大陰之精。象形。凡月之屬皆從月。魚厥切
（月）闕也。大侌之精。月闕?韻。釋名曰。月、缺也。滿則缺也。象形。象不滿之形。魚厥切。十五部。凡月之屬皆從月。