The town I grew up in had a somewhat tropical or continental sounding name, I thought. Delran wasn't like Delray Beach in Florida or Del Rio in Texas or Del Mar in California. It wasn't swanky or exotic. What it was, was at the convergence of the two rivers on its shores. The Delaware River and the Rancocas Creek.
Now by the time the next town over wanted a similarly cool name, it was too late. So, Delanco was born. They couldn't have the beginning of Rancocas, so they took the middle part.
Those are two of the easiest names to figure out. Not so with many of our towns that are remnants of our Lenni Lenape native American tribes that lived here before the Europeans came.