I have found this sentence in Odin Sphere. I guess it's kind of old fashion for a strong interdiction. I first thought it came from the negative form of である but it doesn't seem to be replaceable by ではない.

Does anyone know the origin of this form?

1 Answer 1


Yes, ~するでない is an old-fashioned and pompous way of saying "Don't do ~!".

In modern Japanese, this is a kind of 役割語 (stereotyped role words) which is typically used by nobles and/or old people in manga and samurai dramas. This seems to have been used a lot more 100 years ago or so, because I can find many similar expressions (eg. 泣くでない, 穢すでない, 淋しがるでない) in 青空文庫.

As for the etymology, unfortunately I could not find a good article which explains this. One answer in this chiebukuro question says:


So it seems to have originated from somewhere in the Kansai region in the Edo period.

In this question (note 1) two people say it's 江戸時代の武士の言葉, but I don't know whether real samurai in the Edo period actually spoke in this way.

Note 1: expired link removed, 02/02/2022

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