Where does “減るもんじゃない” come from?

減るもんじゃない (Japanese) comes from Middle Chinese もん, from Japanese 物, from Japanese 物言い, from Japanese 物言う — to talk.

減るもんじゃない (Japanese): it's no big deal, it's not the end of the world (if you do it)

Definitions

  1. it's no big deal, it's not the end of the world (if you do it)

Ancestry of “減るもんじゃない”, step by step

減るもんじゃない traces back through 3 separate lines of ancestry.

via Middle Chinese もん

StepLanguageWordMeaning
1Middle Chineseもん
2Japanesething; story, genre
3Japanese物言いa way of speaking, wording
4Japanese物言うto talk

via Japanese 減る

StepLanguageWordMeaning
1Japanese減るTo be reduced or decrease in size or quantity; to...

via Japanese じゃない

StepLanguageWordMeaning
1Japaneseじゃないnegative of だ; I'm not, you're not; it, he or she...
Every word from Japanese 物言うEvery word from Japanese 物言いEvery word from Japanese
減るもんじゃない — Etymology, Origin & Word History | Etymology Explorer