I am wondering what some people here in this thread might call naturally fermented bread which does not use added yeast, but instead only begins with a starter created with only Flour and Water. The entire rest of the English speaking world calls that Sourdough. There is *no other word* Regardless of the flavor profile, sour or not, that is what it is called. Every cookbook, or any mention on the internet or newspaper food sections. Please educate me, and tell me the English word you think is used.
And Mass Madre is the same exact process and so is the exact translation.