Once in a while you follow a strange word or phrase and end up learning something entirely different like this one from Big Think :
A body of running water may be called any of many different names, the most generic being stream, the most common being river. A river can be defined as ‘a natural stream of water of usually considerable volume’. General terms for smaller streams include creek (smaller than a river) and brook (smaller than a creek). Very specific types of water currents include anabranches (river branches that rejoin the main body of water) and distributaries (branches that don’t).
I think I knew most of these terms and knew that they had something to do with water but never knew the relationships.
I even stayed in a place called Babbling Brook Inn in Santa Cruz, CA a couple of times. I thought it was a cool name.