Latifundium was the area around Rome i think. It now refers to an area with massive plantations (and often times slavery) where a small group of people own massive land areas and use them for cash crops at the expense of everyone who has to work for them. Oftentimes used when describing South America, particularly among leftists who refer to large landowners as Latifundistas (probably didn’t spell it right, I’ve never learned spanish or portugese)

https://en.wikipedia.org/wiki/Latifundium --> Decent wiki article