What is the origin of the idiom "give an inch" and when to use it?

The idiom "give an inch" has its roots in early English idiomatic expressions that referred to small, incremental movements or changes. The word "inch" is used metaphorically to represent a very small unit of measurement, implying a minor or gradual shift in a situation or stance. It is used to convey the idea that someone is very resistant to changing their stance, opinion, or position on a particular matter. It indicates stubbornness or a lack of willingness to compromise or adapt.