A more thorough explanation:

A feu charter is a legal document in Scots law that creates a type of land tenure called feu. This type of tenure allows a person to own a piece of land while also granting them the right to use it for a specific purpose, such as building a house or running a business.

For example, if someone wanted to build a house on a piece of land in Scotland, they would need to obtain a feu charter from the landowner. This document would outline the terms of the agreement, including the amount of rent or other payments that the person would need to make to the landowner in exchange for the right to use the land.

Another example of a feu charter might be a document granting someone the right to use a piece of land for agricultural purposes. In this case, the document would outline the specific terms of the agreement, such as the type of crops that could be grown on the land and the amount of rent that would need to be paid to the landowner.

Overall, a feu charter is an important legal document that helps to define the rights and responsibilities of landowners and tenants in Scotland.