Denshi Jisho — Online Japanese dictionary

もんめ unit of weight, approx. 3.75 g
Noun 
ひゃくめ 375 grams (100 monme)
Irregular kana usage, Noun, Archaism 
ひゃくもんめ 375 grams (100 monme)
Noun, Archaism 

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