To obtain one thing from another by a traceable path. Derivation is what makes a result checkable.

The named system for tracking every change to a body of work. It makes history a first-class thing rather than an afterthought.

Belonging to the older local practices rather than the established religion. Its root means of the countryside — the belief that stayed where people lived.

The part a thing grows from, and the base form a word's variants share. Both are what the rest branches off.